21032023210 has 128 divisors (see below), whose sum is σ = 44259747840. Its totient is φ = 7115500800.

The previous prime is 21032023063. The next prime is 21032023213. The reversal of 21032023210 is 1232023012.

It is not an unprimeable number, because it can be changed into a prime (21032023213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45622380 + ... + 45622840.

It is an arithmetic number, because the mean of its divisors is an integer number (345779280).

Almost surely, 2^21032023210 is an apocalyptic number.

21032023210 is an abundant number, since it is smaller than the sum of its proper divisors (23227724630).

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

21032023210 is a wasteful number, since it uses less digits than its factorization.

21032023210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21032023210 its reverse (1232023012), we get a palindrome (22264046222).

The spelling of 21032023210 in words is "twenty-one billion, thirty-two million, twenty-three thousand, two hundred ten".