1431322432957 has 2 divisors, whose sum is σ = 1431322432958. Its totient is φ = 1431322432956.

The previous prime is 1431322432949. The next prime is 1431322433039. The reversal of 1431322432957 is 7592342231341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 761062567321 + 670259865636 = 872389^2 + 818694^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431322432957 - 2³ = 1431322432949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431322430957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715661216478 + 715661216479.

It is an arithmetic number, because the mean of its divisors is an integer number (715661216479).

Almost surely, 2^{1431322432957} is an apocalyptic number.

It is an amenable number.

1431322432957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431322432957 is an equidigital number, since it uses as much as digits as its factorization.

1431322432957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The spelling of 1431322432957 in words is "one trillion, four hundred thirty-one billion, three hundred twenty-two million, four hundred thirty-two thousand, nine hundred fifty-seven".