120447531136 has 32 divisors (see below), whose sum is σ = 252583232400. Its totient is φ = 57054092544.

The previous prime is 120447531121. The next prime is 120447531157. The reversal of 120447531136 is 631135744021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 120447531095 and 120447531104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24760630 + ... + 24765493.

Almost surely, 2^120447531136 is an apocalyptic number.

120447531136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120447531136 is an abundant number, since it is smaller than the sum of its proper divisors (132135701264).

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

120447531136 is an equidigital number, since it uses as much as digits as its factorization.

120447531136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49526156 (or 49526144 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 120447531136 in words is "one hundred twenty billion, four hundred forty-seven million, five hundred thirty-one thousand, one hundred thirty-six".