321114431 has 16 divisors (see below), whose sum is σ = 371547648. Its totient is φ = 274639200.

The previous prime is 321114407. The next prime is 321114433. The reversal of 321114431 is 134411123.

It is not a de Polignac number, because 321114431 - 2¹⁴ = 321098047 is a prime.

It is a super-2 number, since 2×321114431² = 206228955592907522, which 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 (321114433) 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, 5030 + ... + 25836.

It is an arithmetic number, because the mean of its divisors is an integer number (23221728).

Almost surely, 2^321114431 is an apocalyptic number.

321114431 is a deficient number, since it is larger than the sum of its proper divisors (50433217).

321114431 is a wasteful number, since it uses less digits than its factorization.

321114431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20902.

The product of its digits is 288, while the sum is 20.

The square root of 321114431 is about 17919.6660404149. Note that the first 3 decimals coincide. The cubic root of 321114431 is about 684.7834796168.

Adding to 321114431 its reverse (134411123), we get a palindrome (455525554).

The spelling of 321114431 in words is "three hundred twenty-one million, one hundred fourteen thousand, four hundred thirty-one".