11022013123 has 4 divisors (see below), whose sum is σ = 12024014328. Its totient is φ = 10020011920.

The previous prime is 11022013073. The next prime is 11022013127. The reversal of 11022013123 is 32131022011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11022013123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022013097 and 11022013106.

It is not an unprimeable number, because it can be changed into a prime (11022013127) 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, 501000586 + ... + 501000607.

It is an arithmetic number, because the mean of its divisors is an integer number (3006003582).

Almost surely, 2^11022013123 is an apocalyptic number.

11022013123 is a deficient number, since it is larger than the sum of its proper divisors (1002001205).

11022013123 is a wasteful number, since it uses less digits than its factorization.

11022013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002001204.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11022013123 its reverse (32131022011), we get a palindrome (43153035134).

The spelling of 11022013123 in words is "eleven billion, twenty-two million, thirteen thousand, one hundred twenty-three".