31213090151 has 2 divisors, whose sum is σ = 31213090152. Its totient is φ = 31213090150.

The previous prime is 31213090109. The next prime is 31213090157. The reversal of 31213090151 is 15109031213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31213090151 - 2¹⁸ = 31212828007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31213090151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31213090157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15606545075 + 15606545076.

It is an arithmetic number, because the mean of its divisors is an integer number (15606545076).

Almost surely, 2^31213090151 is an apocalyptic number.

31213090151 is a deficient number, since it is larger than the sum of its proper divisors (1).

31213090151 is an equidigital number, since it uses as much as digits as its factorization.

31213090151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 26.

The spelling of 31213090151 in words is "thirty-one billion, two hundred thirteen million, ninety thousand, one hundred fifty-one".