20013023442 has 16 divisors (see below), whose sum is σ = 41766310080. Its totient is φ = 6380963952.

The previous prime is 20013023417. The next prime is 20013023467. The reversal of 20013023442 is 24432031002.

It is an interprime number because it is at equal distance from previous prime (20013023417) and next prime (20013023467).

It is a super-2 number, since 2×20013023442² (a number of 21 digits) contains 22 as substring.

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, 72510817 + ... + 72511092.

It is an arithmetic number, because the mean of its divisors is an integer number (2610394380).

Almost surely, 2^20013023442 is an apocalyptic number.

20013023442 is an abundant number, since it is smaller than the sum of its proper divisors (21753286638).

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

20013023442 is a wasteful number, since it uses less digits than its factorization.

20013023442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145021937.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20013023442 its reverse (24432031002), we get a palindrome (44445054444).

The spelling of 20013023442 in words is "twenty billion, thirteen million, twenty-three thousand, four hundred forty-two".