21300323112310 has 128 divisors (see below), whose sum is σ = 45113248857600. Its totient is φ = 7157040768000.

The previous prime is 21300323112287. The next prime is 21300323112323. The reversal of 21300323112310 is 1321132300312.

It is a super-2 number, since 2×21300323112310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 344528581 + ... + 344590399.

It is an arithmetic number, because the mean of its divisors is an integer number (352447256700).

Almost surely, 2^{21300323112310} is an apocalyptic number.

21300323112310 is an abundant number, since it is smaller than the sum of its proper divisors (23812925745290).

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

21300323112310 is a wasteful number, since it uses less digits than its factorization.

21300323112310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65918.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21300323112310 its reverse (1321132300312), we get a palindrome (22621455412622).

The spelling of 21300323112310 in words is "twenty-one trillion, three hundred billion, three hundred twenty-three million, one hundred twelve thousand, three hundred ten".