23150440420 has 12 divisors (see below), whose sum is σ = 48615924924. Its totient is φ = 9260176160.

The previous prime is 23150440361. The next prime is 23150440441. The reversal of 23150440420 is 2404405132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3078918144 + 20071522276 = 55488^2 + 141674^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578760991 + ... + 578761030.

It is an arithmetic number, because the mean of its divisors is an integer number (4051327077).

Almost surely, 2^23150440420 is an apocalyptic number.

23150440420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23150440420 is an abundant number, since it is smaller than the sum of its proper divisors (25465484504).

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

23150440420 is a wasteful number, since it uses less digits than its factorization.

23150440420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157522030 (or 1157522028 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 23150440420 its reverse (2404405132), we get a palindrome (25554845552).

The spelling of 23150440420 in words is "twenty-three billion, one hundred fifty million, four hundred forty thousand, four hundred twenty".