231001020110 has 64 divisors (see below), whose sum is σ = 490646937600. Its totient is φ = 76627416960.

The previous prime is 231001020067. The next prime is 231001020149. The reversal of 231001020110 is 11020100132.

It is a super-2 number, since 2×231001020110² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231001020091 and 231001020100.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 11705972 + ... + 11725688.

It is an arithmetic number, because the mean of its divisors is an integer number (7666358400).

Almost surely, 2^231001020110 is an apocalyptic number.

231001020110 is an abundant number, since it is smaller than the sum of its proper divisors (259645917490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231001020110 is a wasteful number, since it uses less digits than its factorization.

231001020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25161.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 231001020110 its reverse (11020100132), we get a palindrome (242021120242).

The spelling of 231001020110 in words is "two hundred thirty-one billion, one million, twenty thousand, one hundred ten".