21133403302 has 16 divisors (see below), whose sum is σ = 34614564624. Its totient is φ = 9597028000.

The previous prime is 21133403279. The next prime is 21133403309. The reversal of 21133403302 is 20330433112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133403309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429349 + ... + 476032.

It is an arithmetic number, because the mean of its divisors is an integer number (2163410289).

Almost surely, 2^21133403302 is an apocalyptic number.

21133403302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21133403302 is a deficient number, since it is larger than the sum of its proper divisors (13481161322).

21133403302 is a wasteful number, since it uses less digits than its factorization.

21133403302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906455.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21133403302 its reverse (20330433112), we get a palindrome (41463836414).

The spelling of 21133403302 in words is "twenty-one billion, one hundred thirty-three million, four hundred three thousand, three hundred two".