42119685061931 has 2 divisors, whose sum is σ = 42119685061932. Its totient is φ = 42119685061930.

The previous prime is 42119685061829. The next prime is 42119685061967. The reversal of 42119685061931 is 13916058691124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42119685061931 is a prime.

It is a super-2 number, since 2×42119685061931² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42119685061991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21059842530965 + 21059842530966.

It is an arithmetic number, because the mean of its divisors is an integer number (21059842530966).

Almost surely, 2^{42119685061931} is an apocalyptic number.

42119685061931 is a deficient number, since it is larger than the sum of its proper divisors (1).

42119685061931 is an equidigital number, since it uses as much as digits as its factorization.

42119685061931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 42119685061931 in words is "forty-two trillion, one hundred nineteen billion, six hundred eighty-five million, sixty-one thousand, nine hundred thirty-one".