231210321031131 has 8 divisors (see below), whose sum is σ = 331994307121680. Its totient is φ = 142283274480672.

The previous prime is 231210321031111. The next prime is 231210321031289. The reversal of 231210321031131 is 131130123012132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231210321031131 - 2¹⁰ = 231210321030107 is a prime.

It is a super-2 number, since 2×231210321031131² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231210321031111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2964234884976 + ... + 2964234885053.

It is an arithmetic number, because the mean of its divisors is an integer number (41499288390210).

Almost surely, 2^{231210321031131} is an apocalyptic number.

231210321031131 is a deficient number, since it is larger than the sum of its proper divisors (100783986090549).

231210321031131 is a wasteful number, since it uses less digits than its factorization.

231210321031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928469770045.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 231210321031131 its reverse (131130123012132), we get a palindrome (362340444043263).

The spelling of 231210321031131 in words is "two hundred thirty-one trillion, two hundred ten billion, three hundred twenty-one million, thirty-one thousand, one hundred thirty-one".