21023311032002 has 16 divisors (see below), whose sum is σ = 31587996098232. Its totient is φ = 10493979619200.

The previous prime is 21023311032001. The next prime is 21023311032019. The reversal of 21023311032002 is 20023011332012.

It can be written as a sum of positive squares in 4 ways, for example, as 20718983379721 + 304327652281 = 4551811^2 + 551659^2 .

It is not an unprimeable number, because it can be changed into a prime (21023311032001) 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, 89375048 + ... + 89609964.

Almost surely, 2^{21023311032002} is an apocalyptic number.

21023311032002 is a deficient number, since it is larger than the sum of its proper divisors (10564685066230).

21023311032002 is a wasteful number, since it uses less digits than its factorization.

21023311032002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309973.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21023311032002 its reverse (20023011332012), we get a palindrome (41046322364014).

The spelling of 21023311032002 in words is "twenty-one trillion, twenty-three billion, three hundred eleven million, thirty-two thousand, two".