1150331431 has 2 divisors, whose sum is σ = 1150331432. Its totient is φ = 1150331430.

The previous prime is 1150331419. The next prime is 1150331519. The reversal of 1150331431 is 1341330511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150331431 is a prime.

It is a super-2 number, since 2×1150331431² = 2646524802293015522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1150331731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575165715 + 575165716.

It is an arithmetic number, because the mean of its divisors is an integer number (575165716).

Almost surely, 2^1150331431 is an apocalyptic number.

1150331431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150331431 is an equidigital number, since it uses as much as digits as its factorization.

1150331431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1150331431 is about 33916.5362470875. The cubic root of 1150331431 is about 1047.7901918510.

Adding to 1150331431 its reverse (1341330511), we get a palindrome (2491661942).

The spelling of 1150331431 in words is "one billion, one hundred fifty million, three hundred thirty-one thousand, four hundred thirty-one".