31287663059 has 2 divisors, whose sum is σ = 31287663060. Its totient is φ = 31287663058.

The previous prime is 31287663041. The next prime is 31287663083. The reversal of 31287663059 is 95036678213.

It is a weak prime.

It is an emirp because it is prime and its reverse (95036678213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31287663059 - 2²⁰ = 31286614483 is a prime.

It is a super-3 number, since 3×31287663059³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31287662998 and 31287663016.

It is not a weakly prime, because it can be changed into another prime (31287663359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15643831529 + 15643831530.

It is an arithmetic number, because the mean of its divisors is an integer number (15643831530).

Almost surely, 2^31287663059 is an apocalyptic number.

31287663059 is a deficient number, since it is larger than the sum of its proper divisors (1).

31287663059 is an equidigital number, since it uses as much as digits as its factorization.

31287663059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 31287663059 in words is "thirty-one billion, two hundred eighty-seven million, six hundred sixty-three thousand, fifty-nine".