31042521259 has 2 divisors, whose sum is σ = 31042521260. Its totient is φ = 31042521258.

The previous prime is 31042521221. The next prime is 31042521277. The reversal of 31042521259 is 95212524013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31042521259 - 2¹³ = 31042513067 is a prime.

It is a super-2 number, since 2×31042521259² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31042521299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15521260629 + 15521260630.

It is an arithmetic number, because the mean of its divisors is an integer number (15521260630).

Almost surely, 2^31042521259 is an apocalyptic number.

31042521259 is a deficient number, since it is larger than the sum of its proper divisors (1).

31042521259 is an equidigital number, since it uses as much as digits as its factorization.

31042521259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 31042521259 in words is "thirty-one billion, forty-two million, five hundred twenty-one thousand, two hundred fifty-nine".