102111223110231 has 32 divisors (see below), whose sum is σ = 145975935426048. Its totient is φ = 63324821070720.

The previous prime is 102111223110191. The next prime is 102111223110251. The reversal of 102111223110231 is 132011322111201.

It is not a de Polignac number, because 102111223110231 - 2⁶ = 102111223110167 is a prime.

It is a super-2 number, since 2×102111223110231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102111223110198 and 102111223110207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111223110251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3944016 + ... + 14824901.

It is an arithmetic number, because the mean of its divisors is an integer number (4561747982064).

Almost surely, 2^{102111223110231} is an apocalyptic number.

102111223110231 is a deficient number, since it is larger than the sum of its proper divisors (43864712315817).

102111223110231 is a wasteful number, since it uses less digits than its factorization.

102111223110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18771111.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 102111223110231 its reverse (132011322111201), we get a palindrome (234122545221432).

The spelling of 102111223110231 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty-three million, one hundred ten thousand, two hundred thirty-one".