21133121320302 has 32 divisors (see below), whose sum is σ = 43502326366464. Its totient is φ = 6839988388800.

The previous prime is 21133121320301. The next prime is 21133121320303. The reversal of 21133121320302 is 20302312133112.

It is an interprime number because it is at equal distance from previous prime (21133121320301) and next prime (21133121320303).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133121320301) 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, 203519178 + ... + 203622989.

It is an arithmetic number, because the mean of its divisors is an integer number (1359447698952).

Almost surely, 2^{21133121320302} is an apocalyptic number.

21133121320302 is an abundant number, since it is smaller than the sum of its proper divisors (22369205046162).

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

21133121320302 is a wasteful number, since it uses less digits than its factorization.

21133121320302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407142424.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21133121320302 its reverse (20302312133112), we get a palindrome (41435433453414).

The spelling of 21133121320302 in words is "twenty-one trillion, one hundred thirty-three billion, one hundred twenty-one million, three hundred twenty thousand, three hundred two".