40303131430987 has 2 divisors, whose sum is σ = 40303131430988. Its totient is φ = 40303131430986.

The previous prime is 40303131430973. The next prime is 40303131431039. The reversal of 40303131430987 is 78903413130304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40303131430987 - 2³⁵ = 40268771692619 is a prime.

It is not a weakly prime, because it can be changed into another prime (40303131430937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151565715493 + 20151565715494.

It is an arithmetic number, because the mean of its divisors is an integer number (20151565715494).

Almost surely, 2^{40303131430987} is an apocalyptic number.

40303131430987 is a deficient number, since it is larger than the sum of its proper divisors (1).

40303131430987 is an equidigital number, since it uses as much as digits as its factorization.

40303131430987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 40303131430987 in words is "forty trillion, three hundred three billion, one hundred thirty-one million, four hundred thirty thousand, nine hundred eighty-seven".