101230999 has 2 divisors, whose sum is σ = 101231000. Its totient is φ = 101230998.

The previous prime is 101230991. The next prime is 101231021. The reversal of 101230999 is 999032101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101230999 - 2³ = 101230991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101230991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615499 + 50615500.

It is an arithmetic number, because the mean of its divisors is an integer number (50615500).

Almost surely, 2^101230999 is an apocalyptic number.

101230999 is a deficient number, since it is larger than the sum of its proper divisors (1).

101230999 is an equidigital number, since it uses as much as digits as its factorization.

101230999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 101230999 is about 10061.3616871674. The cubic root of 101230999 is about 466.0557182543.

The spelling of 101230999 in words is "one hundred one million, two hundred thirty thousand, nine hundred ninety-nine".