11531612119 has 2 divisors, whose sum is σ = 11531612120. Its totient is φ = 11531612118.

The previous prime is 11531612089. The next prime is 11531612129. The reversal of 11531612119 is 91121613511.

It is a strong prime.

It is an emirp because it is prime and its reverse (91121613511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11531612119 - 2⁷ = 11531611991 is a prime.

It is a super-2 number, since 2×11531612119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11531612129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765806059 + 5765806060.

It is an arithmetic number, because the mean of its divisors is an integer number (5765806060).

Almost surely, 2^11531612119 is an apocalyptic number.

11531612119 is a deficient number, since it is larger than the sum of its proper divisors (1).

11531612119 is an equidigital number, since it uses as much as digits as its factorization.

11531612119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 31.

The spelling of 11531612119 in words is "eleven billion, five hundred thirty-one million, six hundred twelve thousand, one hundred nineteen".