30117023 has 2 divisors, whose sum is σ = 30117024. Its totient is φ = 30117022.

The previous prime is 30117019. The next prime is 30117029. The reversal of 30117023 is 32071103.

It is a weak prime.

It is an emirp because it is prime and its reverse (32071103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30117023 - 2² = 30117019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30116992 and 30117010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30117029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15058511 + 15058512.

It is an arithmetic number, because the mean of its divisors is an integer number (15058512).

Almost surely, 2^30117023 is an apocalyptic number.

30117023 is a deficient number, since it is larger than the sum of its proper divisors (1).

30117023 is an equidigital number, since it uses as much as digits as its factorization.

30117023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 30117023 is about 5487.8978671254. The cubic root of 30117023 is about 311.1267460349.

Adding to 30117023 its reverse (32071103), we get a palindrome (62188126).

The spelling of 30117023 in words is "thirty million, one hundred seventeen thousand, twenty-three".