11123020322123 has 12 divisors (see below), whose sum is σ = 11755054222128. Its totient is φ = 10523415445200.

The previous prime is 11123020322093. The next prime is 11123020322137. The reversal of 11123020322123 is 32122302032111.

It is not a de Polignac number, because 11123020322123 - 2⁶ = 11123020322059 is a prime.

It is a super-2 number, since 2×11123020322123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123020322143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20466428 + ... + 21002873.

It is an arithmetic number, because the mean of its divisors is an integer number (979587851844).

Almost surely, 2^{11123020322123} is an apocalyptic number.

11123020322123 is a deficient number, since it is larger than the sum of its proper divisors (632033900005).

11123020322123 is an equidigital number, since it uses as much as digits as its factorization.

11123020322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41470082 (or 41470063 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11123020322123 its reverse (32122302032111), we get a palindrome (43245322354234).

The spelling of 11123020322123 in words is "eleven trillion, one hundred twenty-three billion, twenty million, three hundred twenty-two thousand, one hundred twenty-three".