3112561303 has 2 divisors, whose sum is σ = 3112561304. Its totient is φ = 3112561302.

The previous prime is 3112561301. The next prime is 3112561307. The reversal of 3112561303 is 3031652113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3112561303 - 2¹ = 3112561301 is a prime.

Together with 3112561301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3112561301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556280651 + 1556280652.

It is an arithmetic number, because the mean of its divisors is an integer number (1556280652).

Almost surely, 2^3112561303 is an apocalyptic number.

3112561303 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112561303 is an equidigital number, since it uses as much as digits as its factorization.

3112561303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 3112561303 is about 55790.3334189714. Note that the first 3 decimals coincide. The cubic root of 3112561303 is about 1460.0665046018.

The spelling of 3112561303 in words is "three billion, one hundred twelve million, five hundred sixty-one thousand, three hundred three".