30122506042 has 4 divisors (see below), whose sum is σ = 45183759066. Its totient is φ = 15061253020.

The previous prime is 30122506027. The next prime is 30122506153. The reversal of 30122506042 is 24060522103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24060522103 = 71 ⋅338880593.

It can be written as a sum of positive squares in only one way, i.e., 24263981361 + 5858524681 = 155769^2 + 76541^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30122505998 and 30122506016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7530626509 + ... + 7530626512.

Almost surely, 2^30122506042 is an apocalyptic number.

30122506042 is a deficient number, since it is larger than the sum of its proper divisors (15061253024).

30122506042 is a wasteful number, since it uses less digits than its factorization.

30122506042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15061253023.

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 30122506042 in words is "thirty billion, one hundred twenty-two million, five hundred six thousand, forty-two".