21023363088 has 120 divisors (see below), whose sum is σ = 72413851328. Its totient is φ = 5544619776.

The previous prime is 21023363083. The next prime is 21023363099. The reversal of 21023363088 is 88036332012.

21023363088 is a `hidden beast` number, since 2 + 10 + 2 + 3 + 3 + 630 + 8 + 8 = 666.

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 (21023363083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 789070 + ... + 815277.

Almost surely, 2^21023363088 is an apocalyptic number.

21023363088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21023363088 is an abundant number, since it is smaller than the sum of its proper divisors (51390488240).

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

21023363088 is a wasteful number, since it uses less digits than its factorization.

21023363088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604381 (or 1604372 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 21023363088 in words is "twenty-one billion, twenty-three million, three hundred sixty-three thousand, eighty-eight".