3120345111 has 16 divisors (see below), whose sum is σ = 4496456160. Its totient is φ = 1913372160.

The previous prime is 3120345097. The next prime is 3120345119. The reversal of 3120345111 is 1115430213.

It is not a de Polignac number, because 3120345111 - 2⁵ = 3120345079 is a prime.

It is a super-2 number, since 2×3120345111² = 19473107223483204642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120345119) 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, 131406 + ... + 153323.

It is an arithmetic number, because the mean of its divisors is an integer number (281028510).

Almost surely, 2^3120345111 is an apocalyptic number.

3120345111 is a deficient number, since it is larger than the sum of its proper divisors (1376111049).

3120345111 is a wasteful number, since it uses less digits than its factorization.

3120345111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285026.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 3120345111 is about 55860.0493286571. The cubic root of 3120345111 is about 1461.2825895466.

Adding to 3120345111 its reverse (1115430213), we get a palindrome (4235775324).

The spelling of 3120345111 in words is "three billion, one hundred twenty million, three hundred forty-five thousand, one hundred eleven".