13813375403 has 2 divisors, whose sum is σ = 13813375404. Its totient is φ = 13813375402.

The previous prime is 13813375399. The next prime is 13813375451. The reversal of 13813375403 is 30457331831.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30457331831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13813375403 - 2² = 13813375399 is a prime.

It is not a weakly prime, because it can be changed into another prime (13813315403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6906687701 + 6906687702.

It is an arithmetic number, because the mean of its divisors is an integer number (6906687702).

Almost surely, 2^13813375403 is an apocalyptic number.

13813375403 is a deficient number, since it is larger than the sum of its proper divisors (1).

13813375403 is an equidigital number, since it uses as much as digits as its factorization.

13813375403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 13813375403 in words is "thirteen billion, eight hundred thirteen million, three hundred seventy-five thousand, four hundred three".