40013312012 has 24 divisors (see below), whose sum is σ = 74167709616. Its totient is φ = 18823344128.

The previous prime is 40013311993. The next prime is 40013312039. The reversal of 40013312012 is 21021331004.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102188 + ... + 300780.

It is an arithmetic number, because the mean of its divisors is an integer number (3090321234).

Almost surely, 2^40013312012 is an apocalyptic number.

It is an amenable number.

40013312012 is a deficient number, since it is larger than the sum of its proper divisors (34154397604).

40013312012 is a wasteful number, since it uses less digits than its factorization.

40013312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201577 (or 201575 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 40013312012 its reverse (21021331004), we get a palindrome (61034643016).

The spelling of 40013312012 in words is "forty billion, thirteen million, three hundred twelve thousand, twelve".