231013323131203 has 16 divisors (see below), whose sum is σ = 237000047245920. Its totient is φ = 225043521350400.

The previous prime is 231013323131141. The next prime is 231013323131219. The reversal of 231013323131203 is 302131323310132.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-231013323131203 is a prime.

It is a super-2 number, since 2×231013323131203² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231013323131233) 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, 123923476 + ... + 125773822.

It is an arithmetic number, because the mean of its divisors is an integer number (14812502952870).

Almost surely, 2^{231013323131203} is an apocalyptic number.

231013323131203 is a deficient number, since it is larger than the sum of its proper divisors (5986724114717).

231013323131203 is a wasteful number, since it uses less digits than its factorization.

231013323131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854918.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 231013323131203 its reverse (302131323310132), we get a palindrome (533144646441335).

The spelling of 231013323131203 in words is "two hundred thirty-one trillion, thirteen billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred three".