11202342123 has 24 divisors (see below), whose sum is σ = 17528848848. Its totient is φ = 6344679936.

The previous prime is 11202342079. The next prime is 11202342127. The reversal of 11202342123 is 32124320211.

It is not a de Polignac number, because 11202342123 - 2⁸ = 11202341867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11202342123.

It is not an unprimeable number, because it can be changed into a prime (11202342127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320586 + ... + 353807.

It is an arithmetic number, because the mean of its divisors is an integer number (730368702).

Almost surely, 2^11202342123 is an apocalyptic number.

11202342123 is a deficient number, since it is larger than the sum of its proper divisors (6326506725).

11202342123 is a wasteful number, since it uses less digits than its factorization.

11202342123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674523 (or 674516 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11202342123 its reverse (32124320211), we get a palindrome (43326662334).

The spelling of 11202342123 in words is "eleven billion, two hundred two million, three hundred forty-two thousand, one hundred twenty-three".