431173531057 has 4 divisors (see below), whose sum is σ = 431179324416. Its totient is φ = 431167737700.

The previous prime is 431173531051. The next prime is 431173531069. The reversal of 431173531057 is 750135371134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750135371134 = 2 ⋅375067685567.

It is a cyclic number.

It is not a de Polignac number, because 431173531057 - 2⁷ = 431173530929 is a prime.

It is a super-2 number, since 2×431173531057² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431173531051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783569 + ... + 2934382.

It is an arithmetic number, because the mean of its divisors is an integer number (107794831104).

Almost surely, 2^431173531057 is an apocalyptic number.

It is an amenable number.

431173531057 is a deficient number, since it is larger than the sum of its proper divisors (5793359).

431173531057 is an equidigital number, since it uses as much as digits as its factorization.

431173531057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793358.

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 431173531057 in words is "four hundred thirty-one billion, one hundred seventy-three million, five hundred thirty-one thousand, fifty-seven".