3112130987 has 4 divisors (see below), whose sum is σ = 3556721136. Its totient is φ = 2667540840.

The previous prime is 3112130947. The next prime is 3112130999. The reversal of 3112130987 is 7890312113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7890312113 = 521 ⋅15144553.

It is a cyclic number.

It is not a de Polignac number, because 3112130987 - 2¹⁰ = 3112129963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112130927) 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, 222295064 + ... + 222295077.

It is an arithmetic number, because the mean of its divisors is an integer number (889180284).

Almost surely, 2^3112130987 is an apocalyptic number.

3112130987 is a deficient number, since it is larger than the sum of its proper divisors (444590149).

3112130987 is an equidigital number, since it uses as much as digits as its factorization.

3112130987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444590148.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 3112130987 is about 55786.4767394393. The cubic root of 3112130987 is about 1459.9992160814. Note that the first 3 decimals are identical.

The spelling of 3112130987 in words is "three billion, one hundred twelve million, one hundred thirty thousand, nine hundred eighty-seven".