23421212388 has 36 divisors (see below), whose sum is σ = 67661280960. Its totient is φ = 6691774896.

The previous prime is 23421212387. The next prime is 23421212389. The reversal of 23421212388 is 88321212432.

23421212388 is a `hidden beast` number, since 23 + 42 + 1 + 212 + 388 = 666.

It is an interprime number because it is at equal distance from previous prime (23421212387) and next prime (23421212389).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23421212387) 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, 46470408 + ... + 46470911.

Almost surely, 2^23421212388 is an apocalyptic number.

23421212388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23421212388 is an abundant number, since it is smaller than the sum of its proper divisors (44240068572).

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

23421212388 is a wasteful number, since it uses less digits than its factorization.

23421212388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92941336 (or 92941331 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The spelling of 23421212388 in words is "twenty-three billion, four hundred twenty-one million, two hundred twelve thousand, three hundred eighty-eight".