180323431 has 2 divisors, whose sum is σ = 180323432. Its totient is φ = 180323430.

The previous prime is 180323419. The next prime is 180323447. The reversal of 180323431 is 134323081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180323431 is a prime.

It is a super-2 number, since 2×180323431² = 65033079535223522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180323396 and 180323405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180323491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90161715 + 90161716.

It is an arithmetic number, because the mean of its divisors is an integer number (90161716).

Almost surely, 2^180323431 is an apocalyptic number.

180323431 is a deficient number, since it is larger than the sum of its proper divisors (1).

180323431 is an equidigital number, since it uses as much as digits as its factorization.

180323431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 180323431 is about 13428.4560169813. The cubic root of 180323431 is about 564.9595930066.

The spelling of 180323431 in words is "one hundred eighty million, three hundred twenty-three thousand, four hundred thirty-one".