231322111131310 has 16 divisors (see below), whose sum is σ = 416385556176816. Its totient is φ = 92527565310208.

The previous prime is 231322111131283. The next prime is 231322111131323. The reversal of 231322111131310 is 13131111223132.

It is a super-2 number, since 2×231322111131310² (a number of 30 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 159133084 + ... + 160580143.

It is an arithmetic number, because the mean of its divisors is an integer number (26024097261051).

Almost surely, 2^{231322111131310} is an apocalyptic number.

231322111131310 is a deficient number, since it is larger than the sum of its proper divisors (185063445045506).

231322111131310 is a wasteful number, since it uses less digits than its factorization.

231322111131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319785587.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 231322111131310 its reverse (13131111223132), we get a palindrome (244453222354442).

The spelling of 231322111131310 in words is "two hundred thirty-one trillion, three hundred twenty-two billion, one hundred eleven million, one hundred thirty-one thousand, three hundred ten".