31141120020321 has 12 divisors (see below), whose sum is σ = 43821853104912. Its totient is φ = 19668075801624.

The previous prime is 31141120020281. The next prime is 31141120020419. The reversal of 31141120020321 is 12302002114113.

It is not a de Polignac number, because 31141120020321 - 2²³ = 31141111631713 is a prime.

It is a super-2 number, since 2×31141120020321² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31141120021321) 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 11 ways as a sum of consecutive naturals, for example, 14377247311 + ... + 14377249476.

It is an arithmetic number, because the mean of its divisors is an integer number (3651821092076).

Almost surely, 2^{31141120020321} is an apocalyptic number.

It is an amenable number.

31141120020321 is a deficient number, since it is larger than the sum of its proper divisors (12680733084591).

31141120020321 is a wasteful number, since it uses less digits than its factorization.

31141120020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28754496828 (or 28754496809 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31141120020321 its reverse (12302002114113), we get a palindrome (43443122134434).

The spelling of 31141120020321 in words is "thirty-one trillion, one hundred forty-one billion, one hundred twenty million, twenty thousand, three hundred twenty-one".