11552323111 has 16 divisors (see below), whose sum is σ = 13711354624. Its totient is φ = 9527341824.

The previous prime is 11552323103. The next prime is 11552323127. The reversal of 11552323111 is 11132325511.

It is not a de Polignac number, because 11552323111 - 2³ = 11552323103 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 (11552323151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266250 + ... + 306583.

It is an arithmetic number, because the mean of its divisors is an integer number (856959664).

Almost surely, 2^11552323111 is an apocalyptic number.

11552323111 is a deficient number, since it is larger than the sum of its proper divisors (2159031513).

11552323111 is an equidigital number, since it uses as much as digits as its factorization.

11552323111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572950.

The product of its digits is 900, while the sum is 25.

Adding to 11552323111 its reverse (11132325511), we get a palindrome (22684648622).

The spelling of 11552323111 in words is "eleven billion, five hundred fifty-two million, three hundred twenty-three thousand, one hundred eleven".