63213665031 has 16 divisors (see below), whose sum is σ = 102163499520. Its totient is φ = 38311311960.

The previous prime is 63213665023. The next prime is 63213665087. The reversal of 63213665031 is 13056631236.

63213665031 is a `hidden beast` number, since 632 + 13 + 6 + 6 + 5 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 63213665031 - 2³ = 63213665023 is a prime.

It is a super-2 number, since 2×63213665031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63213665231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106420015 + ... + 106420608.

It is an arithmetic number, because the mean of its divisors is an integer number (6385218720).

Almost surely, 2^63213665031 is an apocalyptic number.

63213665031 is a deficient number, since it is larger than the sum of its proper divisors (38949834489).

63213665031 is a wasteful number, since it uses less digits than its factorization.

63213665031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212840643 (or 212840637 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 63213665031 in words is "sixty-three billion, two hundred thirteen million, six hundred sixty-five thousand, thirty-one".