11349951257 has 2 divisors, whose sum is σ = 11349951258. Its totient is φ = 11349951256.

The previous prime is 11349951227. The next prime is 11349951323. The reversal of 11349951257 is 75215994311.

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., 10563933961 + 786017296 = 102781^2 + 28036^2 .

It is an emirp because it is prime and its reverse (75215994311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11349951257 - 2²² = 11345756953 is a prime.

It is not a weakly prime, because it can be changed into another prime (11349951227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5674975628 + 5674975629.

It is an arithmetic number, because the mean of its divisors is an integer number (5674975629).

Almost surely, 2^11349951257 is an apocalyptic number.

It is an amenable number.

11349951257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11349951257 is an equidigital number, since it uses as much as digits as its factorization.

11349951257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 47.

The spelling of 11349951257 in words is "eleven billion, three hundred forty-nine million, nine hundred fifty-one thousand, two hundred fifty-seven".