20331304043 has 12 divisors (see below), whose sum is σ = 21360620400. Its totient is φ = 19349508816.

The previous prime is 20331304031. The next prime is 20331304051. The reversal of 20331304043 is 34040313302.

It is not a de Polignac number, because 20331304043 - 2⁸ = 20331303787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20331304013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8705 + ... + 201837.

It is an arithmetic number, because the mean of its divisors is an integer number (1780051700).

Almost surely, 2^20331304043 is an apocalyptic number.

20331304043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20331304043 is a deficient number, since it is larger than the sum of its proper divisors (1029316357).

20331304043 is a wasteful number, since it uses less digits than its factorization.

20331304043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193378 (or 193355 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20331304043 its reverse (34040313302), we get a palindrome (54371617345).

The spelling of 20331304043 in words is "twenty billion, three hundred thirty-one million, three hundred four thousand, forty-three".