320321313132 has 24 divisors (see below), whose sum is σ = 751736728176. Its totient is φ = 106156580928.

The previous prime is 320321313131. The next prime is 320321313149. The reversal of 320321313132 is 231313123023.

It is not an unprimeable number, because it can be changed into a prime (320321313131) 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, 77146603 + ... + 77150754.

It is an arithmetic number, because the mean of its divisors is an integer number (31322363674).

Almost surely, 2^320321313132 is an apocalyptic number.

It is an amenable number.

320321313132 is an abundant number, since it is smaller than the sum of its proper divisors (431415415044).

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

320321313132 is a wasteful number, since it uses less digits than its factorization.

320321313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154297537 (or 154297535 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 320321313132 its reverse (231313123023), we get a palindrome (551634436155).

The spelling of 320321313132 in words is "three hundred twenty billion, three hundred twenty-one million, three hundred thirteen thousand, one hundred thirty-two".