232311310131 has 8 divisors (see below), whose sum is σ = 309762229504. Its totient is φ = 154867298760.

The previous prime is 232311310123. The next prime is 232311310201. The reversal of 232311310131 is 131013113232.

It is a happy number.

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

It is not a de Polignac number, because 232311310131 - 2³ = 232311310123 is a prime.

It is a super-2 number, since 2×232311310131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232311310098 and 232311310107.

It is not an unprimeable number, because it can be changed into a prime (232311310031) 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, 1648015 + ... + 1783416.

It is an arithmetic number, because the mean of its divisors is an integer number (38720278688).

Almost surely, 2^232311310131 is an apocalyptic number.

232311310131 is a deficient number, since it is larger than the sum of its proper divisors (77450919373).

232311310131 is a wasteful number, since it uses less digits than its factorization.

232311310131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454001.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 232311310131 its reverse (131013113232), we get a palindrome (363324423363).

The spelling of 232311310131 in words is "two hundred thirty-two billion, three hundred eleven million, three hundred ten thousand, one hundred thirty-one".