133037520723 has 6 divisors (see below), whose sum is σ = 192165307724. Its totient is φ = 88691680476.

The previous prime is 133037520701. The next prime is 133037520731. The reversal of 133037520723 is 327025730331.

133037520723 is a `hidden beast` number, since 1 + 3 + 30 + 37 + 520 + 72 + 3 = 666.

It is not a de Polignac number, because 133037520723 - 2⁶ = 133037520659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133037524723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7390973365 + ... + 7390973382.

Almost surely, 2^133037520723 is an apocalyptic number.

133037520723 is a deficient number, since it is larger than the sum of its proper divisors (59127787001).

133037520723 is a wasteful number, since it uses less digits than its factorization.

133037520723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14781946753 (or 14781946750 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 36.

The spelling of 133037520723 in words is "one hundred thirty-three billion, thirty-seven million, five hundred twenty thousand, seven hundred twenty-three".