11161888393 has 2 divisors, whose sum is σ = 11161888394. Its totient is φ = 11161888392.

The previous prime is 11161888363. The next prime is 11161888469. The reversal of 11161888393 is 39388816111.

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., 11153049664 + 8838729 = 105608^2 + 2973^2 .

It is a cyclic number.

It is not a de Polignac number, because 11161888393 - 2³³ = 2571953801 is a prime.

It is not a weakly prime, because it can be changed into another prime (11161888363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580944196 + 5580944197.

It is an arithmetic number, because the mean of its divisors is an integer number (5580944197).

Almost surely, 2^11161888393 is an apocalyptic number.

It is an amenable number.

11161888393 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161888393 is an equidigital number, since it uses as much as digits as its factorization.

11161888393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 49.

It can be divided in two parts, 11161888 and 393, that added together give a square (11162281 = 3341²).

The spelling of 11161888393 in words is "eleven billion, one hundred sixty-one million, eight hundred eighty-eight thousand, three hundred ninety-three".