320152431 has 8 divisors (see below), whose sum is σ = 441589680. Its totient is φ = 206075072.

The previous prime is 320152429. The next prime is 320152447. The reversal of 320152431 is 134251023.

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

It is a cyclic number.

It is not a de Polignac number, because 320152431 - 2¹ = 320152429 is a prime.

It is a super-2 number, since 2×320152431² = 204995158150419522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320152398 and 320152407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320152411) 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, 1839870 + ... + 1840043.

It is an arithmetic number, because the mean of its divisors is an integer number (55198710).

Almost surely, 2^320152431 is an apocalyptic number.

320152431 is a deficient number, since it is larger than the sum of its proper divisors (121437249).

320152431 is a wasteful number, since it uses less digits than its factorization.

320152431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679945.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 320152431 is about 17892.8038887146. The cubic root of 320152431 is about 684.0989669904.

The spelling of 320152431 in words is "three hundred twenty million, one hundred fifty-two thousand, four hundred thirty-one".