11202111123 has 16 divisors (see below), whose sum is σ = 17310306816. Its totient is φ = 6311047680.

The previous prime is 11202111119. The next prime is 11202111131. The reversal of 11202111123 is 32111120211.

It is not a de Polignac number, because 11202111123 - 2² = 11202111119 is a prime.

It is a super-2 number, since 2×11202111123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11202111103) 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, 3755086 + ... + 3758067.

It is an arithmetic number, because the mean of its divisors is an integer number (1081894176).

Almost surely, 2^11202111123 is an apocalyptic number.

11202111123 is a deficient number, since it is larger than the sum of its proper divisors (6108195693).

11202111123 is an equidigital number, since it uses as much as digits as its factorization.

11202111123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7513234.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11202111123 its reverse (32111120211), we get a palindrome (43313231334).

The spelling of 11202111123 in words is "eleven billion, two hundred two million, one hundred eleven thousand, one hundred twenty-three".