11543454119 has 2 divisors, whose sum is σ = 11543454120. Its totient is φ = 11543454118.

The previous prime is 11543454079. The next prime is 11543454127. The reversal of 11543454119 is 91145434511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11543454119 is a prime.

It is a super-2 number, since 2×11543454119² (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 (11543454149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771727059 + 5771727060.

It is an arithmetic number, because the mean of its divisors is an integer number (5771727060).

Almost surely, 2^11543454119 is an apocalyptic number.

11543454119 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543454119 is an equidigital number, since it uses as much as digits as its factorization.

11543454119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The spelling of 11543454119 in words is "eleven billion, five hundred forty-three million, four hundred fifty-four thousand, one hundred nineteen".