42013231402 has 8 divisors (see below), whose sum is σ = 63129068676. Its totient is φ = 20970208512.

The previous prime is 42013231391. The next prime is 42013231423. The reversal of 42013231402 is 20413231024.

It can be written as a sum of positive squares in 2 ways, for example, as 25351326841 + 16661904561 = 159221^2 + 129081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42013231402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18202153 + ... + 18204460.

Almost surely, 2^42013231402 is an apocalyptic number.

42013231402 is a deficient number, since it is larger than the sum of its proper divisors (21115837274).

42013231402 is a wasteful number, since it uses less digits than its factorization.

42013231402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36407192.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42013231402 its reverse (20413231024), we get a palindrome (62426462426).

The spelling of 42013231402 in words is "forty-two billion, thirteen million, two hundred thirty-one thousand, four hundred two".