321534252544431 has 8 divisors (see below), whose sum is σ = 435111028319104. Its totient is φ = 211156822566360.

The previous prime is 321534252544423. The next prime is 321534252544441. The reversal of 321534252544431 is 134445252435123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321534252544431 - 2³ = 321534252544423 is a prime.

It is a super-2 number, since 2×321534252544431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321534252544411) 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, 799836448915 + ... + 799836449316.

It is an arithmetic number, because the mean of its divisors is an integer number (54388878539888).

Almost surely, 2^{321534252544431} is an apocalyptic number.

321534252544431 is a deficient number, since it is larger than the sum of its proper divisors (113576775774673).

321534252544431 is a wasteful number, since it uses less digits than its factorization.

321534252544431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599672898301.

The product of its digits is 6912000, while the sum is 48.

The spelling of 321534252544431 in words is "three hundred twenty-one trillion, five hundred thirty-four billion, two hundred fifty-two million, five hundred forty-four thousand, four hundred thirty-one".