11112102543 has 8 divisors (see below), whose sum is σ = 14816718000. Its totient is φ = 7407777728.

The previous prime is 11112102509. The next prime is 11112102553. The reversal of 11112102543 is 34520121111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11112102543 - 2²⁵ = 11078548111 is a prime.

It is a super-2 number, since 2×11112102543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112102553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42733 + ... + 155081.

It is an arithmetic number, because the mean of its divisors is an integer number (1852089750).

Almost surely, 2^11112102543 is an apocalyptic number.

11112102543 is a deficient number, since it is larger than the sum of its proper divisors (3704615457).

11112102543 is a wasteful number, since it uses less digits than its factorization.

11112102543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145321.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11112102543 its reverse (34520121111), we get a palindrome (45632223654).

The spelling of 11112102543 in words is "eleven billion, one hundred twelve million, one hundred two thousand, five hundred forty-three".