42013232320 has 56 divisors (see below), whose sum is σ = 102172641984. Its totient is φ = 16447727616.

The previous prime is 42013232281. The next prime is 42013232347. The reversal of 42013232320 is 2323231024.

It is a super-2 number, since 2×42013232320² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42013232291 and 42013232300.

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, 1381677 + ... + 1411756.

It is an arithmetic number, because the mean of its divisors is an integer number (1824511464).

Almost surely, 2^42013232320 is an apocalyptic number.

42013232320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42013232320 is an abundant number, since it is smaller than the sum of its proper divisors (60159409664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42013232320 is a wasteful number, since it uses less digits than its factorization.

42013232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793497 (or 2793487 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 42013232320 its reverse (2323231024), we get a palindrome (44336463344).

The spelling of 42013232320 in words is "forty-two billion, thirteen million, two hundred thirty-two thousand, three hundred twenty".