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100120231311 = 3311811594457
BaseRepresentation
bin101110100111110100…
…0010111110110001111
3100120102112212201121020
41131033220113312033
53120021234400221
6113554500005223
710143033632052
oct1351750276617
9316375781536
10100120231311
1139508295721
12174a2090813
1395976b7a29
144bbaddaa99
15290ea88ac6
hex174fa17d8f

100120231311 has 16 divisors (see below), whose sum is σ = 137876210688. Its totient is φ = 64557921600.

The previous prime is 100120231303. The next prime is 100120231361. The reversal of 100120231311 is 113132021001.

It is a happy number.

It is not a de Polignac number, because 100120231311 - 23 = 100120231303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120231361) 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 15 ways as a sum of consecutive naturals, for example, 128806 + ... + 465651.

It is an arithmetic number, because the mean of its divisors is an integer number (8617263168).

Almost surely, 2100120231311 is an apocalyptic number.

100120231311 is a deficient number, since it is larger than the sum of its proper divisors (37755979377).

100120231311 is a wasteful number, since it uses less digits than its factorization.

100120231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596302.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 100120231311 its reverse (113132021001), we get a palindrome (213252252312).

The spelling of 100120231311 in words is "one hundred billion, one hundred twenty million, two hundred thirty-one thousand, three hundred eleven".

Divisors: 1 3 31 93 1811 5433 56141 168423 594457 1783371 18428167 55284501 1076561627 3229684881 33373410437 100120231311