11123532111 has 32 divisors (see below), whose sum is σ = 15396369408. Its totient is φ = 7137936000.

The previous prime is 11123532103. The next prime is 11123532139.

11123532111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11123532111 - 2³ = 11123532103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123532151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4372906 + ... + 4375448.

It is an arithmetic number, because the mean of its divisors is an integer number (481136544).

Almost surely, 2^11123532111 is an apocalyptic number.

11123532111 is a deficient number, since it is larger than the sum of its proper divisors (4272837297).

11123532111 is a wasteful number, since it uses less digits than its factorization.

11123532111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991.

The product of its digits is 180, while the sum is 21.

The spelling of 11123532111 in words is "eleven billion, one hundred twenty-three million, five hundred thirty-two thousand, one hundred eleven".