1031432431 has 2 divisors, whose sum is σ = 1031432432. Its totient is φ = 1031432430.

The previous prime is 1031432411. The next prime is 1031432477. The reversal of 1031432431 is 1342341301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031432431 is a prime.

It is a super-2 number, since 2×1031432431² = 2127705719437139522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031432411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515716215 + 515716216.

It is an arithmetic number, because the mean of its divisors is an integer number (515716216).

Almost surely, 2^1031432431 is an apocalyptic number.

1031432431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031432431 is an equidigital number, since it uses as much as digits as its factorization.

1031432431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1031432431 is about 32115.9217678708. The cubic root of 1031432431 is about 1010.3695771950.

Adding to 1031432431 its reverse (1342341301), we get a palindrome (2373773732).

The spelling of 1031432431 in words is "one billion, thirty-one million, four hundred thirty-two thousand, four hundred thirty-one".