3111121123 has 16 divisors (see below), whose sum is σ = 3659725440. Its totient is φ = 2614075200.

The previous prime is 3111121109. The next prime is 3111121183. The reversal of 3111121123 is 3211211113.

It is a happy number.

It is not a de Polignac number, because 3111121123 - 2⁹ = 3111120611 is a prime.

It is a super-2 number, since 2×3111121123² = 19358149283953562258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3111121097 and 3111121106.

It is not an unprimeable number, because it can be changed into a prime (3111121183) 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, 172965 + ... + 190102.

It is an arithmetic number, because the mean of its divisors is an integer number (228732840).

Almost surely, 2^3111121123 is an apocalyptic number.

3111121123 is a deficient number, since it is larger than the sum of its proper divisors (548604317).

3111121123 is a wasteful number, since it uses less digits than its factorization.

3111121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363138.

The product of its digits is 36, while the sum is 16.

The square root of 3111121123 is about 55777.4248509197. The cubic root of 3111121123 is about 1459.8412792678.

Adding to 3111121123 its reverse (3211211113), we get a palindrome (6322332236).

The spelling of 3111121123 in words is "three billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty-three".