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2100231122031 = 33732939337361
BaseRepresentation
bin11110100011111111100…
…001111010110001101111
321102210001201101102001000
4132203333201322301233
5233402233131401111
64244455521451343
7304510453661520
oct36437741726157
97383051342030
102100231122031
1173a780796329
1229b0571a0b53
13123087c069c3
147391a4b4847
153997266cc56
hex1e8ff87ac6f

2100231122031 has 32 divisors (see below), whose sum is σ = 3556065369600. Its totient is φ = 1200092077440.

The previous prime is 2100231121939. The next prime is 2100231122081. The reversal of 2100231122031 is 1302211320012.

2100231122031 is a `hidden beast` number, since 2 + 100 + 2 + 311 + 220 + 31 = 666.

It is not a de Polignac number, because 2100231122031 - 27 = 2100231121903 is a prime.

It is a super-2 number, since 2×21002311220312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100231121995 and 2100231122013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100231122081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6056791 + ... + 6394151.

It is an arithmetic number, because the mean of its divisors is an integer number (111127042800).

Almost surely, 22100231122031 is an apocalyptic number.

2100231122031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2100231122031 is a deficient number, since it is larger than the sum of its proper divisors (1455834247569).

2100231122031 is a wasteful number, since it uses less digits than its factorization.

2100231122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370316 (or 370310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2100231122031 its reverse (1302211320012), we get a palindrome (3402442442043).

The spelling of 2100231122031 in words is "two trillion, one hundred billion, two hundred thirty-one million, one hundred twenty-two thousand, thirty-one".

Divisors: 1 3 7 9 21 27 63 189 32939 98817 230573 296451 337361 691719 889353 1012083 2075157 2361527 3036249 6225471 7084581 9108747 21253743 63761229 11112333979 33337001937 77786337853 100011005811 233359013559 300033017433 700077040677 2100231122031