31330542133155 has 24 divisors (see below), whose sum is σ = 52906089993552. Its totient is φ = 15830168654016.

The previous prime is 31330542133151. The next prime is 31330542133171. The reversal of 31330542133155 is 55133124503313.

It is not a de Polignac number, because 31330542133155 - 2² = 31330542133151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31330542133151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2892934764 + ... + 2892945593.

It is an arithmetic number, because the mean of its divisors is an integer number (2204420416398).

Almost surely, 2^{31330542133155} is an apocalyptic number.

31330542133155 is a deficient number, since it is larger than the sum of its proper divisors (21575547860397).

31330542133155 is a wasteful number, since it uses less digits than its factorization.

31330542133155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5785880403 (or 5785880384 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 39.

Adding to 31330542133155 its reverse (55133124503313), we get a palindrome (86463666636468).

The spelling of 31330542133155 in words is "thirty-one trillion, three hundred thirty billion, five hundred forty-two million, one hundred thirty-three thousand, one hundred fifty-five".