12503131358 has 16 divisors (see below), whose sum is σ = 19577220480. Its totient is φ = 5981923200.

The previous prime is 12503131357. The next prime is 12503131363. The reversal of 12503131358 is 85313130521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503131351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127423 + ... + 1138458.

It is an arithmetic number, because the mean of its divisors is an integer number (1223576280).

Almost surely, 2^12503131358 is an apocalyptic number.

12503131358 is a deficient number, since it is larger than the sum of its proper divisors (7074089122).

12503131358 is a wasteful number, since it uses less digits than its factorization.

12503131358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266003.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 12503131358 its reverse (85313130521), we get a palindrome (97816261879).

The spelling of 12503131358 in words is "twelve billion, five hundred three million, one hundred thirty-one thousand, three hundred fifty-eight".