31287663083 has 2 divisors, whose sum is σ = 31287663084. Its totient is φ = 31287663082.

The previous prime is 31287663059. The next prime is 31287663091. The reversal of 31287663083 is 38036678213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31287663083 - 2⁸ = 31287662827 is a prime.

It is a super-2 number, since 2×31287663083² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31287663013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15643831541 + 15643831542.

It is an arithmetic number, because the mean of its divisors is an integer number (15643831542).

Almost surely, 2^31287663083 is an apocalyptic number.

31287663083 is a deficient number, since it is larger than the sum of its proper divisors (1).

31287663083 is an equidigital number, since it uses as much as digits as its factorization.

31287663083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 31287663083 in words is "thirty-one billion, two hundred eighty-seven million, six hundred sixty-three thousand, eighty-three".