11323204123 has 16 divisors (see below), whose sum is σ = 14162374656. Its totient is φ = 8795067840.

The previous prime is 11323204121. The next prime is 11323204141. The reversal of 11323204123 is 32140232311.

It is a cyclic number.

It is not a de Polignac number, because 11323204123 - 2¹ = 11323204121 is a prime.

It is a super-2 number, since 2×11323204123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11323204094 and 11323204103.

It is not an unprimeable number, because it can be changed into a prime (11323204121) 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, 210811 + ... + 259012.

It is an arithmetic number, because the mean of its divisors is an integer number (885148416).

Almost surely, 2^11323204123 is an apocalyptic number.

11323204123 is a deficient number, since it is larger than the sum of its proper divisors (2839170533).

11323204123 is a wasteful number, since it uses less digits than its factorization.

11323204123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470154.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 11323204123 its reverse (32140232311), we get a palindrome (43463436434).

The spelling of 11323204123 in words is "eleven billion, three hundred twenty-three million, two hundred four thousand, one hundred twenty-three".