42004425131 has 16 divisors (see below), whose sum is σ = 43751232000. Its totient is φ = 40297194528.

The previous prime is 42004425103. The next prime is 42004425143. The reversal of 42004425131 is 13152440024.

It is a cyclic number.

It is not a de Polignac number, because 42004425131 - 2¹⁸ = 42004162987 is a prime.

It is a super-2 number, since 2×42004425131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42004425131.

It is not an unprimeable number, because it can be changed into a prime (42004425101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946076 + ... + 989478.

It is an arithmetic number, because the mean of its divisors is an integer number (2734452000).

Almost surely, 2^42004425131 is an apocalyptic number.

42004425131 is a deficient number, since it is larger than the sum of its proper divisors (1746806869).

42004425131 is a wasteful number, since it uses less digits than its factorization.

42004425131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43858.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 42004425131 its reverse (13152440024), we get a palindrome (55156865155).

The spelling of 42004425131 in words is "forty-two billion, four million, four hundred twenty-five thousand, one hundred thirty-one".