21121311130300 has 36 divisors (see below), whose sum is σ = 46899134584456. Its totient is φ = 8252047137600.

The previous prime is 21121311130291. The next prime is 21121311130307. The reversal of 21121311130300 is 303111312112.

It is a super-2 number, since 2×21121311130300² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121311130307) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2455962111 + ... + 2455970710.

Almost surely, 2^{21121311130300} is an apocalyptic number.

21121311130300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21121311130300 is an abundant number, since it is smaller than the sum of its proper divisors (25777823454156).

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

21121311130300 is a wasteful number, since it uses less digits than its factorization.

21121311130300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911932878 (or 4911932871 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21121311130300 its reverse (303111312112), we get a palindrome (21424422442412).

The spelling of 21121311130300 in words is "twenty-one trillion, one hundred twenty-one billion, three hundred eleven million, one hundred thirty thousand, three hundred".