123142000987 has 2 divisors, whose sum is σ = 123142000988. Its totient is φ = 123142000986.

The previous prime is 123142000979. The next prime is 123142001011. The reversal of 123142000987 is 789000241321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123142000987 - 2³ = 123142000979 is a prime.

It is not a weakly prime, because it can be changed into another prime (123142000187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571000493 + 61571000494.

It is an arithmetic number, because the mean of its divisors is an integer number (61571000494).

Almost surely, 2^123142000987 is an apocalyptic number.

123142000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

123142000987 is an equidigital number, since it uses as much as digits as its factorization.

123142000987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 123142000987 in words is "one hundred twenty-three billion, one hundred forty-two million, nine hundred eighty-seven", and thus it is an aban number.