230331121321131 has 64 divisors (see below), whose sum is σ = 363585245184000. Its totient is φ = 143693194315680.

The previous prime is 230331121321127. The next prime is 230331121321151. The reversal of 230331121321131 is 131123121133032.

230331121321131 is a `hidden beast` number, since 2 + 3 + 0 + 3 + 311 + 21 + 321 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 230331121321131 - 2² = 230331121321127 is a prime.

It is a super-2 number, since 2×230331121321131² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 230331121321095 and 230331121321104.

It is not an unprimeable number, because it can be changed into a prime (230331121321151) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 232455330 + ... + 233444088.

It is an arithmetic number, because the mean of its divisors is an integer number (5681019456000).

Almost surely, 2^{230331121321131} is an apocalyptic number.

230331121321131 is a deficient number, since it is larger than the sum of its proper divisors (133254123862869).

230331121321131 is a wasteful number, since it uses less digits than its factorization.

230331121321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994341 (or 994335 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 230331121321131 its reverse (131123121133032), we get a palindrome (361454242454163).

The spelling of 230331121321131 in words is "two hundred thirty trillion, three hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred thirty-one".