11249403157 has 2 divisors, whose sum is σ = 11249403158. Its totient is φ = 11249403156.

The previous prime is 11249403049. The next prime is 11249403173. The reversal of 11249403157 is 75130494211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11241512676 + 7890481 = 106026^2 + 2809^2 .

It is an emirp because it is prime and its reverse (75130494211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11249403157 - 2⁷ = 11249403029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11249103157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5624701578 + 5624701579.

It is an arithmetic number, because the mean of its divisors is an integer number (5624701579).

Almost surely, 2^11249403157 is an apocalyptic number.

It is an amenable number.

11249403157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11249403157 is an equidigital number, since it uses as much as digits as its factorization.

11249403157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

Adding to 11249403157 its reverse (75130494211), we get a palindrome (86379897368).

The spelling of 11249403157 in words is "eleven billion, two hundred forty-nine million, four hundred three thousand, one hundred fifty-seven".