21113130133100 has 72 divisors (see below), whose sum is σ = 48005842825248. Its totient is φ = 8044548019200.

The previous prime is 21113130133087. The next prime is 21113130133127. The reversal of 21113130133100 is 133103131112.

It is a super-2 number, since 2×21113130133100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18490559 + ... + 19599158.

Almost surely, 2^{21113130133100} is an apocalyptic number.

21113130133100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113130133100 is an abundant number, since it is smaller than the sum of its proper divisors (26892712692148).

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

21113130133100 is a wasteful number, since it uses less digits than its factorization.

21113130133100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38089995 (or 38089988 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 21113130133100 its reverse (133103131112), we get a palindrome (21246233264212).

The spelling of 21113130133100 in words is "twenty-one trillion, one hundred thirteen billion, one hundred thirty million, one hundred thirty-three thousand, one hundred".