30120023015 has 16 divisors (see below), whose sum is σ = 36843919200. Its totient is φ = 23633114112.

The previous prime is 30120022963. The next prime is 30120023023. The reversal of 30120023015 is 51032002103.

It is a cyclic number.

It is not a de Polignac number, because 30120023015 - 2⁸ = 30120022759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30120022984 and 30120023002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165170 + ... + 295839.

It is an arithmetic number, because the mean of its divisors is an integer number (2302744950).

Almost surely, 2^30120023015 is an apocalyptic number.

30120023015 is a deficient number, since it is larger than the sum of its proper divisors (6723896185).

30120023015 is a wasteful number, since it uses less digits than its factorization.

30120023015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461266.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 30120023015 its reverse (51032002103), we get a palindrome (81152025118).

The spelling of 30120023015 in words is "thirty billion, one hundred twenty million, twenty-three thousand, fifteen".