13223100312 has 80 divisors (see below), whose sum is σ = 38986272600. Its totient is φ = 4175712000.

The previous prime is 13223100239. The next prime is 13223100337. The reversal of 13223100312 is 21300132231.

13223100312 is a `hidden beast` number, since 1 + 322 + 31 + 0 + 0 + 312 = 666.

It is a super-2 number, since 2×13223100312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 524689 + ... + 549312.

Almost surely, 2^13223100312 is an apocalyptic number.

13223100312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13223100312 is an abundant number, since it is smaller than the sum of its proper divisors (25763172288).

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

13223100312 is a wasteful number, since it uses less digits than its factorization.

13223100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074038 (or 1074025 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13223100312 its reverse (21300132231), we get a palindrome (34523232543).

The spelling of 13223100312 in words is "thirteen billion, two hundred twenty-three million, one hundred thousand, three hundred twelve".