42131010430997 has 2 divisors, whose sum is σ = 42131010430998. Its totient is φ = 42131010430996.

The previous prime is 42131010430931. The next prime is 42131010431071. The reversal of 42131010430997 is 79903401013124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37501244878276 + 4629765552721 = 6123826^2 + 2151689^2 .

It is a cyclic number.

It is not a de Polignac number, because 42131010430997 - 2¹⁴ = 42131010414613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42131010430907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21065505215498 + 21065505215499.

It is an arithmetic number, because the mean of its divisors is an integer number (21065505215499).

Almost surely, 2^{42131010430997} is an apocalyptic number.

It is an amenable number.

42131010430997 is a deficient number, since it is larger than the sum of its proper divisors (1).

42131010430997 is an equidigital number, since it uses as much as digits as its factorization.

42131010430997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 42131010430997 in words is "forty-two trillion, one hundred thirty-one billion, ten million, four hundred thirty thousand, nine hundred ninety-seven".