3112131443 has 4 divisors (see below), whose sum is σ = 3112281648. Its totient is φ = 3111981240.

The previous prime is 3112131439. The next prime is 3112131479. The reversal of 3112131443 is 3441312113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3441312113 = 4001 ⋅860113.

It is a cyclic number.

It is not a de Polignac number, because 3112131443 - 2² = 3112131439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112131343) 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, 37871 + ... + 87512.

It is an arithmetic number, because the mean of its divisors is an integer number (778070412).

Almost surely, 2^3112131443 is an apocalyptic number.

3112131443 is a deficient number, since it is larger than the sum of its proper divisors (150205).

3112131443 is a wasteful number, since it uses less digits than its factorization.

3112131443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150204.

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

The square root of 3112131443 is about 55786.4808264511. The cubic root of 3112131443 is about 1459.9992873894. Note that the first 3 decimals are identical.

Adding to 3112131443 its reverse (3441312113), we get a palindrome (6553443556).

The spelling of 3112131443 in words is "three billion, one hundred twelve million, one hundred thirty-one thousand, four hundred forty-three".