31425941087 has 2 divisors, whose sum is σ = 31425941088. Its totient is φ = 31425941086.

The previous prime is 31425941069. The next prime is 31425941101. The reversal of 31425941087 is 78014952413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31425941087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31425541087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15712970543 + 15712970544.

It is an arithmetic number, because the mean of its divisors is an integer number (15712970544).

Almost surely, 2^31425941087 is an apocalyptic number.

31425941087 is a deficient number, since it is larger than the sum of its proper divisors (1).

31425941087 is an equidigital number, since it uses as much as digits as its factorization.

31425941087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 31425941087 in words is "thirty-one billion, four hundred twenty-five million, nine hundred forty-one thousand, eighty-seven".