11185487293 has 2 divisors, whose sum is σ = 11185487294. Its totient is φ = 11185487292.

The previous prime is 11185487233. The next prime is 11185487323. The reversal of 11185487293 is 39278458111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11163612964 + 21874329 = 105658^2 + 4677^2 .

It is a cyclic number.

It is not a de Polignac number, because 11185487293 - 2¹³ = 11185479101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11185487233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5592743646 + 5592743647.

It is an arithmetic number, because the mean of its divisors is an integer number (5592743647).

Almost surely, 2^11185487293 is an apocalyptic number.

It is an amenable number.

11185487293 is a deficient number, since it is larger than the sum of its proper divisors (1).

11185487293 is an equidigital number, since it uses as much as digits as its factorization.

11185487293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 49.

The spelling of 11185487293 in words is "eleven billion, one hundred eighty-five million, four hundred eighty-seven thousand, two hundred ninety-three".