20315134451332 has 24 divisors (see below), whose sum is σ = 40631259032000. Its totient is φ = 8706274022880.

The previous prime is 20315134451329. The next prime is 20315134451333. The reversal of 20315134451332 is 23315443151302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20315134451291 and 20315134451300.

It is not an unprimeable number, because it can be changed into a prime (20315134451333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7668207 + ... + 9971542.

Almost surely, 2^{20315134451332} is an apocalyptic number.

It is an amenable number.

20315134451332 is an abundant number, since it is smaller than the sum of its proper divisors (20316124580668).

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

20315134451332 is a wasteful number, since it uses less digits than its factorization.

20315134451332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17680891 (or 17680889 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 20315134451332 in words is "twenty trillion, three hundred fifteen billion, one hundred thirty-four million, four hundred fifty-one thousand, three hundred thirty-two".