12311030440452 has 24 divisors (see below), whose sum is σ = 28734739895232. Its totient is φ = 4102390784800.

The previous prime is 12311030440447. The next prime is 12311030440477. The reversal of 12311030440452 is 25404403011321.

It is a super-2 number, since 2×12311030440452² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160713699 + ... + 160790282.

It is an arithmetic number, because the mean of its divisors is an integer number (1197280828968).

Almost surely, 2^{12311030440452} is an apocalyptic number.

12311030440452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12311030440452 is an abundant number, since it is smaller than the sum of its proper divisors (16423709454780).

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

12311030440452 is a wasteful number, since it uses less digits than its factorization.

12311030440452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321507179 (or 321507177 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 12311030440452 its reverse (25404403011321), we get a palindrome (37715433451773).

The spelling of 12311030440452 in words is "twelve trillion, three hundred eleven billion, thirty million, four hundred forty thousand, four hundred fifty-two".