231210010031 has 16 divisors (see below), whose sum is σ = 310435819008. Its totient is φ = 166304901600.

The previous prime is 231210010021. The next prime is 231210010103. The reversal of 231210010031 is 130010012132.

It is a cyclic number.

It is not a de Polignac number, because 231210010031 - 2²² = 231205815727 is a prime.

It is a super-2 number, since 2×231210010031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231210009988 and 231210010015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231210010021) 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, 115488515 + ... + 115490516.

It is an arithmetic number, because the mean of its divisors is an integer number (19402238688).

Almost surely, 2^231210010031 is an apocalyptic number.

231210010031 is a deficient number, since it is larger than the sum of its proper divisors (79225808977).

231210010031 is a wasteful number, since it uses less digits than its factorization.

231210010031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230979062.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 231210010031 its reverse (130010012132), we get a palindrome (361220022163).

The spelling of 231210010031 in words is "two hundred thirty-one billion, two hundred ten million, ten thousand, thirty-one".