321142054152 has 64 divisors (see below), whose sum is σ = 826116192000. Its totient is φ = 103973696064.

The previous prime is 321142054141. The next prime is 321142054159. The reversal of 321142054152 is 251450241123.

It is a super-2 number, since 2×321142054152² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321142054159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684502 + ... + 1053957.

It is an arithmetic number, because the mean of its divisors is an integer number (12908065500).

Almost surely, 2^321142054152 is an apocalyptic number.

It is an amenable number.

321142054152 is an abundant number, since it is smaller than the sum of its proper divisors (504974137848).

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

321142054152 is a wasteful number, since it uses less digits than its factorization.

321142054152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738690 (or 1738686 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 321142054152 its reverse (251450241123), we get a palindrome (572592295275).

The spelling of 321142054152 in words is "three hundred twenty-one billion, one hundred forty-two million, fifty-four thousand, one hundred fifty-two".