142321163404531 has 16 divisors (see below), whose sum is σ = 152372660695200. Its totient is φ = 132464216081920.

The previous prime is 142321163404501. The next prime is 142321163404559. The reversal of 142321163404531 is 135404361123241.

It is a cyclic number.

It is not a de Polignac number, because 142321163404531 - 2⁹ = 142321163404019 is a prime.

It is a super-2 number, since 2×142321163404531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142321163404501) 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, 123184480 + ... + 124334461.

It is an arithmetic number, because the mean of its divisors is an integer number (9523291293450).

Almost surely, 2^{142321163404531} is an apocalyptic number.

142321163404531 is a deficient number, since it is larger than the sum of its proper divisors (10051497290669).

142321163404531 is a wasteful number, since it uses less digits than its factorization.

142321163404531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247519334.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 142321163404531 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-three million, four hundred four thousand, five hundred thirty-one".