231120203131310 has 32 divisors (see below), whose sum is σ = 440218175058432. Its totient is φ = 87183126220960.

The previous prime is 231120203131267. The next prime is 231120203131319. The reversal of 231120203131310 is 13131302021132.

It is a super-2 number, since 2×231120203131310² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231120203131319) 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, 7076536124 + ... + 7076568783.

It is an arithmetic number, because the mean of its divisors is an integer number (13756817970576).

Almost surely, 2^{231120203131310} is an apocalyptic number.

231120203131310 is a deficient number, since it is larger than the sum of its proper divisors (209097971927122).

231120203131310 is a wasteful number, since it uses less digits than its factorization.

231120203131310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14153105008.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 231120203131310 its reverse (13131302021132), we get a palindrome (244251505152442).

The spelling of 231120203131310 in words is "two hundred thirty-one trillion, one hundred twenty billion, two hundred three million, one hundred thirty-one thousand, three hundred ten".