42013304031 has 4 divisors (see below), whose sum is σ = 56017738712. Its totient is φ = 28008869352.

The previous prime is 42013304027. The next prime is 42013304071. The reversal of 42013304031 is 13040331024.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42013304031 - 2² = 42013304027 is a prime.

It is a super-2 number, since 2×42013304031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42013303989 and 42013304007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42013304071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7002217336 + ... + 7002217341.

It is an arithmetic number, because the mean of its divisors is an integer number (14004434678).

Almost surely, 2^42013304031 is an apocalyptic number.

42013304031 is a deficient number, since it is larger than the sum of its proper divisors (14004434681).

42013304031 is a wasteful number, since it uses less digits than its factorization.

42013304031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14004434680.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 42013304031 its reverse (13040331024), we get a palindrome (55053635055).

The spelling of 42013304031 in words is "forty-two billion, thirteen million, three hundred four thousand, thirty-one".