11403131317 has 2 divisors, whose sum is σ = 11403131318. Its totient is φ = 11403131316.

The previous prime is 11403131297. The next prime is 11403131353. The reversal of 11403131317 is 71313130411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10157817796 + 1245313521 = 100786^2 + 35289^2 .

It is a cyclic number.

It is not a de Polignac number, because 11403131317 - 2²⁷ = 11268913589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11403131291 and 11403131300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11403141317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701565658 + 5701565659.

It is an arithmetic number, because the mean of its divisors is an integer number (5701565659).

Almost surely, 2^11403131317 is an apocalyptic number.

It is an amenable number.

11403131317 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403131317 is an equidigital number, since it uses as much as digits as its factorization.

11403131317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 11403131317 its reverse (71313130411), we get a palindrome (82716261728).

The spelling of 11403131317 in words is "eleven billion, four hundred three million, one hundred thirty-one thousand, three hundred seventeen".