11034121123 has 4 divisors (see below), whose sum is σ = 11614864360. Its totient is φ = 10453377888.

The previous prime is 11034121117. The next prime is 11034121139. The reversal of 11034121123 is 32112143011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11034121123 - 2²⁵ = 11000566691 is a prime.

It is a super-2 number, since 2×11034121123² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 580743217 = 11034121123 / (1 + 1 + 0 + 3 + 4 + 1 + 2 + 1 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11034121123.

It is not an unprimeable number, because it can be changed into a prime (11034121103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290371590 + ... + 290371627.

It is an arithmetic number, because the mean of its divisors is an integer number (2903716090).

Almost surely, 2^11034121123 is an apocalyptic number.

11034121123 is a deficient number, since it is larger than the sum of its proper divisors (580743237).

11034121123 is an equidigital number, since it uses as much as digits as its factorization.

11034121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580743236.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11034121123 its reverse (32112143011), we get a palindrome (43146264134).

The spelling of 11034121123 in words is "eleven billion, thirty-four million, one hundred twenty-one thousand, one hundred twenty-three".