31313200023151 has 2 divisors, whose sum is σ = 31313200023152. Its totient is φ = 31313200023150.

The previous prime is 31313200023139. The next prime is 31313200023221. The reversal of 31313200023151 is 15132000231313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31313200023151 - 2⁹ = 31313200022639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31313200024151) 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 as a sum of consecutive naturals, namely, 15656600011575 + 15656600011576.

It is an arithmetic number, because the mean of its divisors is an integer number (15656600011576).

Almost surely, 2^{31313200023151} is an apocalyptic number.

31313200023151 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313200023151 is an equidigital number, since it uses as much as digits as its factorization.

31313200023151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 31313200023151 its reverse (15132000231313), we get a palindrome (46445200254464).

The spelling of 31313200023151 in words is "thirty-one trillion, three hundred thirteen billion, two hundred million, twenty-three thousand, one hundred fifty-one".