30112120111987 has 2 divisors, whose sum is σ = 30112120111988. Its totient is φ = 30112120111986.

The previous prime is 30112120111973. The next prime is 30112120112051. The reversal of 30112120111987 is 78911102121103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30112120111987 - 2²⁷ = 30111985894259 is a prime.

It is not a weakly prime, because it can be changed into another prime (30112120111907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056060055993 + 15056060055994.

It is an arithmetic number, because the mean of its divisors is an integer number (15056060055994).

Almost surely, 2^{30112120111987} is an apocalyptic number.

30112120111987 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112120111987 is an equidigital number, since it uses as much as digits as its factorization.

30112120111987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 37.

The spelling of 30112120111987 in words is "thirty trillion, one hundred twelve billion, one hundred twenty million, one hundred eleven thousand, nine hundred eighty-seven".