23143330420 has 48 divisors (see below), whose sum is σ = 55943637120. Its totient is φ = 7877764224.

The previous prime is 23143330417. The next prime is 23143330423. The reversal of 23143330420 is 2403334132.

It is an interprime number because it is at equal distance from previous prime (23143330417) and next prime (23143330423).

It is a super-2 number, since 2×23143330420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143330423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575179 + ... + 614098.

It is an arithmetic number, because the mean of its divisors is an integer number (1165492440).

Almost surely, 2^23143330420 is an apocalyptic number.

23143330420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23143330420 is an abundant number, since it is smaller than the sum of its proper divisors (32800306700).

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

23143330420 is a wasteful number, since it uses less digits than its factorization.

23143330420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189432 (or 1189430 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23143330420 its reverse (2403334132), we get a palindrome (25546664552).

The spelling of 23143330420 in words is "twenty-three billion, one hundred forty-three million, three hundred thirty thousand, four hundred twenty".