431432214091 has 2 divisors, whose sum is σ = 431432214092. Its totient is φ = 431432214090.

The previous prime is 431432214053. The next prime is 431432214121. The reversal of 431432214091 is 190412234134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431432214091 is a prime.

It is a super-2 number, since 2×431432214091² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431432214011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215716107045 + 215716107046.

It is an arithmetic number, because the mean of its divisors is an integer number (215716107046).

Almost surely, 2^431432214091 is an apocalyptic number.

431432214091 is a deficient number, since it is larger than the sum of its proper divisors (1).

431432214091 is an equidigital number, since it uses as much as digits as its factorization.

431432214091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 431432214091 in words is "four hundred thirty-one billion, four hundred thirty-two million, two hundred fourteen thousand, ninety-one".