431421530971 has 2 divisors, whose sum is σ = 431421530972. Its totient is φ = 431421530970.

The previous prime is 431421530951. The next prime is 431421531053. The reversal of 431421530971 is 179035124134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431421530971 - 2¹⁵ = 431421498203 is a prime.

It is a super-2 number, since 2×431421530971² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431421530951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215710765485 + 215710765486.

It is an arithmetic number, because the mean of its divisors is an integer number (215710765486).

Almost surely, 2^431421530971 is an apocalyptic number.

431421530971 is a deficient number, since it is larger than the sum of its proper divisors (1).

431421530971 is an equidigital number, since it uses as much as digits as its factorization.

431421530971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 431421530971 in words is "four hundred thirty-one billion, four hundred twenty-one million, five hundred thirty thousand, nine hundred seventy-one".