12501121344 has 56 divisors (see below), whose sum is σ = 33100536288. Its totient is φ = 4163934720.

The previous prime is 12501121337. The next prime is 12501121351. The reversal of 12501121344 is 44312110521.

It is an interprime number because it is at equal distance from previous prime (12501121337) and next prime (12501121351).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 241579 + ... + 288725.

Almost surely, 2^12501121344 is an apocalyptic number.

It is an amenable number.

12501121344 is an abundant number, since it is smaller than the sum of its proper divisors (20599414944).

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

12501121344 is a wasteful number, since it uses less digits than its factorization.

12501121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48543 (or 48533 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12501121344 its reverse (44312110521), we get a palindrome (56813231865).

The spelling of 12501121344 in words is "twelve billion, five hundred one million, one hundred twenty-one thousand, three hundred forty-four".