1251542144312 has 16 divisors (see below), whose sum is σ = 2484679257360. Its totient is φ = 588961009024.

The previous prime is 1251542144291. The next prime is 1251542144317. The reversal of 1251542144312 is 2134412451521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251542144317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4601257748 + ... + 4601258019.

It is an arithmetic number, because the mean of its divisors is an integer number (155292453585).

Almost surely, 2^{1251542144312} is an apocalyptic number.

It is an amenable number.

1251542144312 is a deficient number, since it is larger than the sum of its proper divisors (1233137113048).

1251542144312 is a wasteful number, since it uses less digits than its factorization.

1251542144312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9202515790 (or 9202515786 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

Adding to 1251542144312 its reverse (2134412451521), we get a palindrome (3385954595833).

The spelling of 1251542144312 in words is "one trillion, two hundred fifty-one billion, five hundred forty-two million, one hundred forty-four thousand, three hundred twelve".