31322321087 has 2 divisors, whose sum is σ = 31322321088. Its totient is φ = 31322321086.

The previous prime is 31322321071. The next prime is 31322321113. The reversal of 31322321087 is 78012322313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31322321087 - 2⁴ = 31322321071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322321027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661160543 + 15661160544.

It is an arithmetic number, because the mean of its divisors is an integer number (15661160544).

Almost surely, 2^31322321087 is an apocalyptic number.

31322321087 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322321087 is an equidigital number, since it uses as much as digits as its factorization.

31322321087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 31322321087 in words is "thirty-one billion, three hundred twenty-two million, three hundred twenty-one thousand, eighty-seven".