321044434431 has 16 divisors (see below), whose sum is σ = 506079897600. Its totient is φ = 177127963488.

The previous prime is 321044434379. The next prime is 321044434441. The reversal of 321044434431 is 134434440123.

It is not a de Polignac number, because 321044434431 - 2⁷ = 321044434303 is a prime.

It is a super-2 number, since 2×321044434431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321044434392 and 321044434401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321044434441) 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, 263582671 + ... + 263583888.

It is an arithmetic number, because the mean of its divisors is an integer number (31629993600).

Almost surely, 2^321044434431 is an apocalyptic number.

321044434431 is a deficient number, since it is larger than the sum of its proper divisors (185035463169).

321044434431 is a wasteful number, since it uses less digits than its factorization.

321044434431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527166598.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 321044434431 its reverse (134434440123), we get a palindrome (455478874554).

The spelling of 321044434431 in words is "three hundred twenty-one billion, forty-four million, four hundred thirty-four thousand, four hundred thirty-one".