21133123302 has 16 divisors (see below), whose sum is σ = 42268287600. Its totient is φ = 7044034272.

The previous prime is 21133123301. The next prime is 21133123307. The reversal of 21133123302 is 20332133112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133123301) 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, 71824 + ... + 217772.

It is an arithmetic number, because the mean of its divisors is an integer number (2641767975).

Almost surely, 2^21133123302 is an apocalyptic number.

21133123302 is an abundant number, since it is smaller than the sum of its proper divisors (21135164298).

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

21133123302 is a wasteful number, since it uses less digits than its factorization.

21133123302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170087.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21133123302 its reverse (20332133112), we get a palindrome (41465256414).

The spelling of 21133123302 in words is "twenty-one billion, one hundred thirty-three million, one hundred twenty-three thousand, three hundred two".