3312112145 has 4 divisors (see below), whose sum is σ = 3974534580. Its totient is φ = 2649689712.

The previous prime is 3312112073. The next prime is 3312112201. The reversal of 3312112145 is 5412112133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5412112133 = 19 ⋅284848007.

It can be written as a sum of positive squares in 2 ways, for example, as 2105800321 + 1206311824 = 45889^2 + 34732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3312112145 is a prime.

It is a super-2 number, since 2×3312112145² = 21940173722113002050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3312112145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331211210 + ... + 331211219.

It is an arithmetic number, because the mean of its divisors is an integer number (993633645).

Almost surely, 2^3312112145 is an apocalyptic number.

It is an amenable number.

3312112145 is a deficient number, since it is larger than the sum of its proper divisors (662422435).

3312112145 is an equidigital number, since it uses as much as digits as its factorization.

3312112145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662422434.

The product of its digits is 720, while the sum is 23.

The square root of 3312112145 is about 57550.9525985452. The cubic root of 3312112145 is about 1490.6248066517.

Adding to 3312112145 its reverse (5412112133), we get a palindrome (8724224278).

The spelling of 3312112145 in words is "three billion, three hundred twelve million, one hundred twelve thousand, one hundred forty-five".