21132042311300 has 36 divisors (see below), whose sum is σ = 45873662218020. Its totient is φ = 8449659246720.

The previous prime is 21132042311231. The next prime is 21132042311311. The reversal of 21132042311300 is 311324023112.

It can be written as a sum of positive squares in 6 ways, for example, as 4827696628804 + 16304345682496 = 2197202^2 + 4037864^2 .

It is a super-2 number, since 2×21132042311300² (a number of 27 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 39201935 + ... + 39737334.

It is an arithmetic number, because the mean of its divisors is an integer number (1274268394945).

Almost surely, 2^{21132042311300} is an apocalyptic number.

21132042311300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21132042311300 is an abundant number, since it is smaller than the sum of its proper divisors (24741619906720).

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

21132042311300 is a wasteful number, since it uses less digits than its factorization.

21132042311300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78941960 (or 78941953 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21132042311300 its reverse (311324023112), we get a palindrome (21443366334412).

The spelling of 21132042311300 in words is "twenty-one trillion, one hundred thirty-two billion, forty-two million, three hundred eleven thousand, three hundred".