11121523143 has 4 divisors (see below), whose sum is σ = 14828697528. Its totient is φ = 7414348760.

The previous prime is 11121523129. The next prime is 11121523151. The reversal of 11121523143 is 34132512111.

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

It is a cyclic number.

It is not a de Polignac number, because 11121523143 - 2⁸ = 11121522887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121523243) 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, 1853587188 + ... + 1853587193.

It is an arithmetic number, because the mean of its divisors is an integer number (3707174382).

Almost surely, 2^11121523143 is an apocalyptic number.

11121523143 is a deficient number, since it is larger than the sum of its proper divisors (3707174385).

11121523143 is an equidigital number, since it uses as much as digits as its factorization.

11121523143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707174384.

The product of its digits is 720, while the sum is 24.

The spelling of 11121523143 in words is "eleven billion, one hundred twenty-one million, five hundred twenty-three thousand, one hundred forty-three".