42401431012 has 24 divisors (see below), whose sum is σ = 74438091000. Its totient is φ = 21133472256.

The previous prime is 42401431003. The next prime is 42401431043. The reversal of 42401431012 is 21013410424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 676832256 + 41724598756 = 26016^2 + 204266^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907114 + ... + 2921662.

It is an arithmetic number, because the mean of its divisors is an integer number (3101587125).

Almost surely, 2^42401431012 is an apocalyptic number.

It is an amenable number.

42401431012 is a deficient number, since it is larger than the sum of its proper divisors (32036659988).

42401431012 is a wasteful number, since it uses less digits than its factorization.

42401431012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16815 (or 16813 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 42401431012 its reverse (21013410424), we get a palindrome (63414841436).

The spelling of 42401431012 in words is "forty-two billion, four hundred one million, four hundred thirty-one thousand, twelve".