30120640297 has 4 divisors (see below), whose sum is σ = 32858880336. Its totient is φ = 27382400260.

The previous prime is 30120640271. The next prime is 30120640309. The reversal of 30120640297 is 79204602103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30120640297 - 2¹⁵ = 30120607529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30120641297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369120003 + ... + 1369120024.

It is an arithmetic number, because the mean of its divisors is an integer number (8214720084).

Almost surely, 2^30120640297 is an apocalyptic number.

It is an amenable number.

30120640297 is a deficient number, since it is larger than the sum of its proper divisors (2738240039).

30120640297 is a wasteful number, since it uses less digits than its factorization.

30120640297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738240038.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 30120640297 in words is "thirty billion, one hundred twenty million, six hundred forty thousand, two hundred ninety-seven".