21133133310 has 32 divisors (see below), whose sum is σ = 50804236800. Its totient is φ = 5626089248.

The previous prime is 21133133303. The next prime is 21133133323. The reversal of 21133133310 is 1333133112.

It is a super-2 number, since 2×21133133310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570042 + ... + 605981.

It is an arithmetic number, because the mean of its divisors is an integer number (1587632400).

Almost surely, 2^21133133310 is an apocalyptic number.

21133133310 is an abundant number, since it is smaller than the sum of its proper divisors (29671103490).

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

21133133310 is a wasteful number, since it uses less digits than its factorization.

21133133310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176632.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 21133133310 its reverse (1333133112), we get a palindrome (22466266422).

The spelling of 21133133310 in words is "twenty-one billion, one hundred thirty-three million, one hundred thirty-three thousand, three hundred ten".