11015344397 has 2 divisors, whose sum is σ = 11015344398. Its totient is φ = 11015344396.

The previous prime is 11015344337. The next prime is 11015344433. The reversal of 11015344397 is 79344351011.

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., 8826414601 + 2188929796 = 93949^2 + 46786^2 .

It is a cyclic number.

It is not a de Polignac number, because 11015344397 - 2⁸ = 11015344141 is a prime.

It is a super-3 number, since 3×11015344397³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11015344397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11015344337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5507672198 + 5507672199.

It is an arithmetic number, because the mean of its divisors is an integer number (5507672199).

Almost surely, 2^11015344397 is an apocalyptic number.

It is an amenable number.

11015344397 is a deficient number, since it is larger than the sum of its proper divisors (1).

11015344397 is an equidigital number, since it uses as much as digits as its factorization.

11015344397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 11015344397 in words is "eleven billion, fifteen million, three hundred forty-four thousand, three hundred ninety-seven".