42141994031 has 2 divisors, whose sum is σ = 42141994032. Its totient is φ = 42141994030.

The previous prime is 42141994009. The next prime is 42141994051. The reversal of 42141994031 is 13049914124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42141994031 - 2³⁰ = 41068252207 is a prime.

It is a super-2 number, since 2×42141994031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42141994051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21070997015 + 21070997016.

It is an arithmetic number, because the mean of its divisors is an integer number (21070997016).

Almost surely, 2^42141994031 is an apocalyptic number.

42141994031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42141994031 is an equidigital number, since it uses as much as digits as its factorization.

42141994031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 42141994031 in words is "forty-two billion, one hundred forty-one million, nine hundred ninety-four thousand, thirty-one".