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312312133101020 = 22513292400039379
BaseRepresentation
bin100011100000010111101010…
…1110000001010010111011100
31111221210202012112112010000112
41013000233111300022113130
5311413410222033213040
63024122114021545152
7122532543542206343
oct10700572560122734
91457722175463015
10312312133101020
119056a9171a1a38
122b0402255751b8
1310535ba551ac00
145719db8b00b5a
152618e4e201365
hex11c0bd5c0a5dc

312312133101020 has 36 divisors (see below), whose sum is σ = 710186702674680. Its totient is φ = 115315249143744.

The previous prime is 312312133101011. The next prime is 312312133101029. The reversal of 312312133101020 is 20101331213213.

It is an interprime number because it is at equal distance from previous prime (312312133101011) and next prime (312312133101029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312312133101029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46200016310 + ... + 46200023069.

It is an arithmetic number, because the mean of its divisors is an integer number (19727408407630).

Almost surely, 2312312133101020 is an apocalyptic number.

It is an amenable number.

312312133101020 is an abundant number, since it is smaller than the sum of its proper divisors (397874569573660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312312133101020 is a wasteful number, since it uses less digits than its factorization.

312312133101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92400039414 (or 92400039399 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 312312133101020 its reverse (20101331213213), we get a palindrome (332413464314233).

The spelling of 312312133101020 in words is "three hundred twelve trillion, three hundred twelve billion, one hundred thirty-three million, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1690 3380 92400039379 184800078758 369600157516 462000196895 924000393790 1201200511927 1848000787580 2402401023854 4804802047708 6006002559635 12012005119270 15615606655051 24024010238540 31231213310102 62462426620204 78078033275255 156156066550510 312312133101020