1112312987 has 2 divisors, whose sum is σ = 1112312988. Its totient is φ = 1112312986.

The previous prime is 1112312983. The next prime is 1112313061. The reversal of 1112312987 is 7892132111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112312987 - 2² = 1112312983 is a prime.

It is not a weakly prime, because it can be changed into another prime (1112312983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556156493 + 556156494.

It is an arithmetic number, because the mean of its divisors is an integer number (556156494).

Almost surely, 2^1112312987 is an apocalyptic number.

1112312987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112312987 is an equidigital number, since it uses as much as digits as its factorization.

1112312987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 35.

The square root of 1112312987 is about 33351.3565990950. The cubic root of 1112312987 is about 1036.1174848627.

The spelling of 1112312987 in words is "one billion, one hundred twelve million, three hundred twelve thousand, nine hundred eighty-seven".