21332023102 has 32 divisors (see below), whose sum is σ = 36411217920. Its totient is φ = 9291840480.

The previous prime is 21332023039. The next prime is 21332023103. The reversal of 21332023102 is 20132023312.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 21332023102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332023103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47827 + ... + 212017.

It is an arithmetic number, because the mean of its divisors is an integer number (1137850560).

Almost surely, 2^21332023102 is an apocalyptic number.

21332023102 is a deficient number, since it is larger than the sum of its proper divisors (15079194818).

21332023102 is a wasteful number, since it uses less digits than its factorization.

21332023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164488.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21332023102 its reverse (20132023312), we get a palindrome (41464046414).

The spelling of 21332023102 in words is "twenty-one billion, three hundred thirty-two million, twenty-three thousand, one hundred two".