23420501188 has 36 divisors (see below), whose sum is σ = 47718631632. Its totient is φ = 10028687760.

The previous prime is 23420501161. The next prime is 23420501189. The reversal of 23420501188 is 88110502432.

It is a happy number.

It is a super-2 number, since 2×23420501188² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23420501189) 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, 178495 + ... + 280537.

Almost surely, 2^23420501188 is an apocalyptic number.

23420501188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23420501188 is an abundant number, since it is smaller than the sum of its proper divisors (24298130444).

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

23420501188 is a wasteful number, since it uses less digits than its factorization.

23420501188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103232 (or 103223 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 23420501188 in words is "twenty-three billion, four hundred twenty million, five hundred one thousand, one hundred eighty-eight".