321431043214423 has 4 divisors (see below), whose sum is σ = 321450468567480. Its totient is φ = 321411617861368.

The previous prime is 321431043214417. The next prime is 321431043214427. The reversal of 321431043214423 is 324412340134123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321431043214423 - 2¹⁷ = 321431043083351 is a prime.

It is a super-2 number, since 2×321431043214423² (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 (321431043214427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9712651708 + ... + 9712684801.

It is an arithmetic number, because the mean of its divisors is an integer number (80362617141870).

Almost surely, 2^{321431043214423} is an apocalyptic number.

321431043214423 is a deficient number, since it is larger than the sum of its proper divisors (19425353057).

321431043214423 is a wasteful number, since it uses less digits than its factorization.

321431043214423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19425353056.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 321431043214423 its reverse (324412340134123), we get a palindrome (645843383348546).

The spelling of 321431043214423 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, forty-three million, two hundred fourteen thousand, four hundred twenty-three".