431376427331 has 2 divisors, whose sum is σ = 431376427332. Its totient is φ = 431376427330.

The previous prime is 431376427319. The next prime is 431376427369. The reversal of 431376427331 is 133724673134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431376427331 - 2²⁶ = 431309318467 is a prime.

It is a super-2 number, since 2×431376427331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431376420331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215688213665 + 215688213666.

It is an arithmetic number, because the mean of its divisors is an integer number (215688213666).

Almost surely, 2^431376427331 is an apocalyptic number.

431376427331 is a deficient number, since it is larger than the sum of its proper divisors (1).

431376427331 is an equidigital number, since it uses as much as digits as its factorization.

431376427331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 44.

The spelling of 431376427331 in words is "four hundred thirty-one billion, three hundred seventy-six million, four hundred twenty-seven thousand, three hundred thirty-one".