320102431 has 16 divisors (see below), whose sum is σ = 368022528. Its totient is φ = 275572000.

The previous prime is 320102417. The next prime is 320102459. The reversal of 320102431 is 134201023.

It is a happy number.

It is not a de Polignac number, because 320102431 - 2⁷ = 320102303 is a prime.

It is a super-2 number, since 2×320102431² = 204931132664219522, 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 (320102491) 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, 19290 + ... + 31816.

It is an arithmetic number, because the mean of its divisors is an integer number (23001408).

Almost surely, 2^320102431 is an apocalyptic number.

320102431 is a deficient number, since it is larger than the sum of its proper divisors (47920097).

320102431 is a wasteful number, since it uses less digits than its factorization.

320102431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12662.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 320102431 is about 17891.4066244105. The cubic root of 320102431 is about 684.0633519460.

Adding to 320102431 its reverse (134201023), we get a palindrome (454303454).

The spelling of 320102431 in words is "three hundred twenty million, one hundred two thousand, four hundred thirty-one".