12481993503 has 12 divisors (see below), whose sum is σ = 20605195728. Its totient is φ = 7132567680.

The previous prime is 12481993499. The next prime is 12481993507. The reversal of 12481993503 is 30539918421.

It is a happy number.

12481993503 is a `hidden beast` number, since 1 + 2 + 48 + 19 + 93 + 503 = 666.

It is an interprime number because it is at equal distance from previous prime (12481993499) and next prime (12481993507).

It is not a de Polignac number, because 12481993503 - 2² = 12481993499 is a prime.

It is a super-2 number, since 2×12481993503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12481993507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99063378 + ... + 99063503.

It is an arithmetic number, because the mean of its divisors is an integer number (1717099644).

Almost surely, 2^12481993503 is an apocalyptic number.

12481993503 is a deficient number, since it is larger than the sum of its proper divisors (8123202225).

12481993503 is a wasteful number, since it uses less digits than its factorization.

12481993503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198126894 (or 198126891 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 12481993503 in words is "twelve billion, four hundred eighty-one million, nine hundred ninety-three thousand, five hundred three".