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231300031133111 = 19734915973210619
BaseRepresentation
bin110100100101110110111100…
…001100010011010110110111
31010022222001210212020222212212
4310211312330030103112313
5220304104430432224421
62135533433431404035
766501606252223463
oct6445667414232667
91108861725228785
10231300031133111
1167776879660336
1221b375b452361b
139c0a6650a6205
144118da47414a3
151bb19a088ce5b
hexd25dbc3135b7

231300031133111 has 16 divisors (see below), whose sum is σ = 233155960884000. Its totient is φ = 229451077392768.

The previous prime is 231300031133099. The next prime is 231300031133131. The reversal of 231300031133111 is 111331130003132.

It is a cyclic number.

It is not a de Polignac number, because 231300031133111 - 230 = 231298957391287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231300031133131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1098086360 + ... + 1098296978.

It is an arithmetic number, because the mean of its divisors is an integer number (14572247555250).

Almost surely, 2231300031133111 is an apocalyptic number.

231300031133111 is a deficient number, since it is larger than the sum of its proper divisors (1855929750889).

231300031133111 is a wasteful number, since it uses less digits than its factorization.

231300031133111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227138.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 231300031133111 its reverse (111331130003132), we get a palindrome (342631161136243).

The spelling of 231300031133111 in words is "two hundred thirty-one trillion, three hundred billion, thirty-one million, one hundred thirty-three thousand, one hundred eleven".

Divisors: 1 197 349 15973 68753 210619 3146681 5574577 41491943 73506031 1098191669 3364217287 14480688107 662750805539 1174111833163 231300031133111