12311449798 has 48 divisors (see below), whose sum is σ = 20795100480. Its totient is φ = 5448077712.

The previous prime is 12311449757. The next prime is 12311449831. The reversal of 12311449798 is 89794411321.

It is a super-2 number, since 2×12311449798² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 857265 + ... + 871507.

It is an arithmetic number, because the mean of its divisors is an integer number (433231260).

Almost surely, 2^12311449798 is an apocalyptic number.

12311449798 is a deficient number, since it is larger than the sum of its proper divisors (8483650682).

12311449798 is a wasteful number, since it uses less digits than its factorization.

12311449798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14353 (or 14330 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The spelling of 12311449798 in words is "twelve billion, three hundred eleven million, four hundred forty-nine thousand, seven hundred ninety-eight".