21032323002 has 32 divisors (see below), whose sum is σ = 46777046400. Its totient is φ = 7004991744.

The previous prime is 21032323001. The next prime is 21032323043. The reversal of 21032323002 is 20032323012.

It is a happy number.

It is a super-2 number, since 2×21032323002² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21032323001) 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, 94302 + ... + 225737.

It is an arithmetic number, because the mean of its divisors is an integer number (1461782700).

Almost surely, 2^21032323002 is an apocalyptic number.

21032323002 is an abundant number, since it is smaller than the sum of its proper divisors (25744723398).

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

21032323002 is a wasteful number, since it uses less digits than its factorization.

21032323002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321267 (or 321261 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21032323002 its reverse (20032323012), we get a palindrome (41064646014).

The spelling of 21032323002 in words is "twenty-one billion, thirty-two million, three hundred twenty-three thousand, two".