11143499999 has 4 divisors (see below), whose sum is σ = 11214477864. Its totient is φ = 11072522136.

The previous prime is 11143499993. The next prime is 11143500007. The reversal of 11143499999 is 99999434111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11143499999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143499993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35488697 + ... + 35489010.

It is an arithmetic number, because the mean of its divisors is an integer number (2803619466).

Almost surely, 2^11143499999 is an apocalyptic number.

11143499999 is a deficient number, since it is larger than the sum of its proper divisors (70977865).

11143499999 is an equidigital number, since it uses as much as digits as its factorization.

11143499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70977864.

The product of its digits is 2834352, while the sum is 59.

The spelling of 11143499999 in words is "eleven billion, one hundred forty-three million, four hundred ninety-nine thousand, nine hundred ninety-nine".