30120402345 has 24 divisors (see below), whose sum is σ = 52972082688. Its totient is φ = 14603830560.

The previous prime is 30120402317. The next prime is 30120402359. The reversal of 30120402345 is 54320402103.

It is not a de Polignac number, because 30120402345 - 2¹³ = 30120394153 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8295817 + ... + 8299446.

It is an arithmetic number, because the mean of its divisors is an integer number (2207170112).

Almost surely, 2^30120402345 is an apocalyptic number.

It is an amenable number.

30120402345 is a deficient number, since it is larger than the sum of its proper divisors (22851680343).

30120402345 is a wasteful number, since it uses less digits than its factorization.

30120402345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16595293 (or 16595282 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 30120402345 its reverse (54320402103), we get a palindrome (84440804448).

The spelling of 30120402345 in words is "thirty billion, one hundred twenty million, four hundred two thousand, three hundred forty-five".