21023210288 has 40 divisors (see below), whose sum is σ = 42888683520. Its totient is φ = 9955483200.

The previous prime is 21023210287. The next prime is 21023210333. The reversal of 21023210288 is 88201232012.

It is a self number, because there is not a number n which added to its sum of digits gives 21023210288.

It is not an unprimeable number, because it can be changed into a prime (21023210287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344113 + ... + 1359663.

It is an arithmetic number, because the mean of its divisors is an integer number (1072217088).

Almost surely, 2^21023210288 is an apocalyptic number.

It is an amenable number.

21023210288 is an abundant number, since it is smaller than the sum of its proper divisors (21865473232).

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

21023210288 is a wasteful number, since it uses less digits than its factorization.

21023210288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20025 (or 20019 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 21023210288 in words is "twenty-one billion, twenty-three million, two hundred ten thousand, two hundred eighty-eight".