63312012 has 36 divisors (see below), whose sum is σ = 169454376. Its totient is φ = 19862400.

The previous prime is 63312001. The next prime is 63312043. The reversal of 63312012 is 21021336.

63312012 is a `hidden beast` number, since 633 + 1 + 20 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51114 + ... + 52337.

It is an arithmetic number, because the mean of its divisors is an integer number (4707066).

Almost surely, 2^63312012 is an apocalyptic number.

It is an amenable number.

63312012 is an abundant number, since it is smaller than the sum of its proper divisors (106142364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63312012 is a wasteful number, since it uses less digits than its factorization.

63312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103478 (or 103473 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 63312012 is about 7956.8845662106. The cubic root of 63312012 is about 398.5615248408.

Adding to 63312012 its reverse (21021336), we get a palindrome (84333348).

The spelling of 63312012 in words is "sixty-three million, three hundred twelve thousand, twelve".