21011101300 has 36 divisors (see below), whose sum is σ = 52107532960. Its totient is φ = 7203805920.

The previous prime is 21011101283. The next prime is 21011101333. The reversal of 21011101300 is 310111012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15007230 + ... + 15008629.

Almost surely, 2^21011101300 is an apocalyptic number.

21011101300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011101300 is an abundant number, since it is smaller than the sum of its proper divisors (31096431660).

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

21011101300 is a wasteful number, since it uses less digits than its factorization.

21011101300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30015880 (or 30015873 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 21011101300 its reverse (310111012), we get a palindrome (21321212312).

The spelling of 21011101300 in words is "twenty-one billion, eleven million, one hundred one thousand, three hundred".