42023520031 has 2 divisors, whose sum is σ = 42023520032. Its totient is φ = 42023520030.

The previous prime is 42023519977. The next prime is 42023520067. The reversal of 42023520031 is 13002532024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42023520031 is a prime.

It is a super-2 number, since 2×42023520031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42023519984 and 42023520011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42023520631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21011760015 + 21011760016.

It is an arithmetic number, because the mean of its divisors is an integer number (21011760016).

Almost surely, 2^42023520031 is an apocalyptic number.

42023520031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42023520031 is an equidigital number, since it uses as much as digits as its factorization.

42023520031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 42023520031 in words is "forty-two billion, twenty-three million, five hundred twenty thousand, thirty-one".