320135315432 has 32 divisors (see below), whose sum is σ = 653633820000. Its totient is φ = 146413971648.

The previous prime is 320135315393. The next prime is 320135315459. The reversal of 320135315432 is 234513531023.

It is a super-2 number, since 2×320135315432² (a number of 24 digits) contains 22 as substring.

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, 36308582 + ... + 36317397.

It is an arithmetic number, because the mean of its divisors is an integer number (20426056875).

Almost surely, 2^320135315432 is an apocalyptic number.

It is an amenable number.

320135315432 is an abundant number, since it is smaller than the sum of its proper divisors (333498504568).

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

320135315432 is a wasteful number, since it uses less digits than its factorization.

320135315432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72626033 (or 72626029 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 320135315432 its reverse (234513531023), we get a palindrome (554648846455).

The spelling of 320135315432 in words is "three hundred twenty billion, one hundred thirty-five million, three hundred fifteen thousand, four hundred thirty-two".