21300133223131 has 16 divisors (see below), whose sum is σ = 24558745305600. Its totient is φ = 18095459211648.

The previous prime is 21300133223123. The next prime is 21300133223179. The reversal of 21300133223131 is 13132233100312.

It is not a de Polignac number, because 21300133223131 - 2³ = 21300133223123 is a prime.

It is a super-2 number, since 2×21300133223131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21300133223096 and 21300133223105.

It is not an unprimeable number, because it can be changed into a prime (21300133223531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98085490 + ... + 98302408.

It is an arithmetic number, because the mean of its divisors is an integer number (1534921581600).

Almost surely, 2^{21300133223131} is an apocalyptic number.

21300133223131 is a deficient number, since it is larger than the sum of its proper divisors (3258612082469).

21300133223131 is a wasteful number, since it uses less digits than its factorization.

21300133223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341178.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21300133223131 its reverse (13132233100312), we get a palindrome (34432366323443).

The spelling of 21300133223131 in words is "twenty-one trillion, three hundred billion, one hundred thirty-three million, two hundred twenty-three thousand, one hundred thirty-one".