431046131987 has 2 divisors, whose sum is σ = 431046131988. Its totient is φ = 431046131986.

The previous prime is 431046131977. The next prime is 431046132001. The reversal of 431046131987 is 789131640134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431046131987 - 2⁸ = 431046131731 is a prime.

It is not a weakly prime, because it can be changed into another prime (431046131917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215523065993 + 215523065994.

It is an arithmetic number, because the mean of its divisors is an integer number (215523065994).

Almost surely, 2^431046131987 is an apocalyptic number.

431046131987 is a deficient number, since it is larger than the sum of its proper divisors (1).

431046131987 is an equidigital number, since it uses as much as digits as its factorization.

431046131987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 431046131987 in words is "four hundred thirty-one billion, forty-six million, one hundred thirty-one thousand, nine hundred eighty-seven".