231032303230131 has 144 divisors (see below), whose sum is σ = 387755758765440. Its totient is φ = 132095838251520.

The previous prime is 231032303230121. The next prime is 231032303230199. The reversal of 231032303230131 is 131032303230132.

231032303230131 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 323 + 0 + 3 + 2 + 301 + 31 = 666.

It is not a de Polignac number, because 231032303230131 - 2⁹ = 231032303229619 is a prime.

It is a super-2 number, since 2×231032303230131² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231032303230095 and 231032303230104.

It is not an unprimeable number, because it can be changed into a prime (231032303230121) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 439262071 + ... + 439787711.

It is an arithmetic number, because the mean of its divisors is an integer number (2692748324760).

Almost surely, 2^{231032303230131} is an apocalyptic number.

231032303230131 is a deficient number, since it is larger than the sum of its proper divisors (156723455535309).

231032303230131 is a wasteful number, since it uses less digits than its factorization.

231032303230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525986 (or 525970 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 231032303230131 its reverse (131032303230132), we get a palindrome (362064606460263).

Subtracting from 231032303230131 its reverse (131032303230132), we obtain a palindrome (99999999999999).

The spelling of 231032303230131 in words is "two hundred thirty-one trillion, thirty-two billion, three hundred three million, two hundred thirty thousand, one hundred thirty-one".