30020999 has 2 divisors, whose sum is σ = 30021000. Its totient is φ = 30020998.

The previous prime is 30020987. The next prime is 30021011. The reversal of 30020999 is 99902003.

It is a balanced prime because it is at equal distance from previous prime (30020987) and next prime (30021011).

It is a cyclic number.

It is not a de Polignac number, because 30020999 - 2²⁰ = 28972423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30020959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010499 + 15010500.

It is an arithmetic number, because the mean of its divisors is an integer number (15010500).

Almost surely, 2^30020999 is an apocalyptic number.

30020999 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020999 is an equidigital number, since it uses as much as digits as its factorization.

30020999 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 32.

The square root of 30020999 is about 5479.1421773851. The cubic root of 30020999 is about 310.7957323257.

The spelling of 30020999 in words is "thirty million, twenty thousand, nine hundred ninety-nine".