40320412134021 has 12 divisors (see below), whose sum is σ = 58659592395040. Its totient is φ = 26686891483560.

The previous prime is 40320412133983. The next prime is 40320412134049. The reversal of 40320412134021 is 12043121402304.

40320412134021 is a `hidden beast` number, since 4 + 0 + 3 + 2 + 0 + 41 + 213 + 402 + 1 = 666.

It is not a de Polignac number, because 40320412134021 - 2⁹ = 40320412133509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320412130021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16115271385 + ... + 16115273886.

Almost surely, 2^{40320412134021} is an apocalyptic number.

It is an amenable number.

40320412134021 is a deficient number, since it is larger than the sum of its proper divisors (18339180261019).

40320412134021 is a wasteful number, since it uses less digits than its factorization.

40320412134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32230545416 (or 32230545413 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 40320412134021 its reverse (12043121402304), we get a palindrome (52363533536325).

The spelling of 40320412134021 in words is "forty trillion, three hundred twenty billion, four hundred twelve million, one hundred thirty-four thousand, twenty-one".