12311451321052 has 48 divisors (see below), whose sum is σ = 23834422437952. Its totient is φ = 5527479398400.

The previous prime is 12311451321049. The next prime is 12311451321061. The reversal of 12311451321052 is 25012315411321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8570713 + ... + 9903535.

Almost surely, 2^{12311451321052} is an apocalyptic number.

It is an amenable number.

12311451321052 is a deficient number, since it is larger than the sum of its proper divisors (11522971116900).

12311451321052 is a wasteful number, since it uses less digits than its factorization.

12311451321052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337678 (or 1337676 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 12311451321052 its reverse (25012315411321), we get a palindrome (37323766732373).

The spelling of 12311451321052 in words is "twelve trillion, three hundred eleven billion, four hundred fifty-one million, three hundred twenty-one thousand, fifty-two".