30243122397 has 6 divisors (see below), whose sum is σ = 43684510142. Its totient is φ = 20162081592.

The previous prime is 30243122359. The next prime is 30243122401. The reversal of 30243122397 is 79322134203.

30243122397 is a `hidden beast` number, since 3 + 0 + 243 + 1 + 22 + 397 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16915343481 + 13327778916 = 130059^2 + 115446^2 .

It is not a de Polignac number, because 30243122397 - 2⁶ = 30243122333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243123397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1680173458 + ... + 1680173475.

Almost surely, 2^30243122397 is an apocalyptic number.

It is an amenable number.

30243122397 is a deficient number, since it is larger than the sum of its proper divisors (13441387745).

30243122397 is a wasteful number, since it uses less digits than its factorization.

30243122397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360346939 (or 3360346936 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 30243122397 in words is "thirty billion, two hundred forty-three million, one hundred twenty-two thousand, three hundred ninety-seven".