30123212234309 has 4 divisors (see below), whose sum is σ = 30124901057004. Its totient is φ = 30121523411616.

The previous prime is 30123212234303. The next prime is 30123212234317. The reversal of 30123212234309 is 90343221232103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9383868156100 + 20739344078209 = 3063310^2 + 4554047^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123212234309 - 2²⁸ = 30122943798853 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 (30123212234303) 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, 844384592 + ... + 844420265.

It is an arithmetic number, because the mean of its divisors is an integer number (7531225264251).

Almost surely, 2^{30123212234309} is an apocalyptic number.

It is an amenable number.

30123212234309 is a deficient number, since it is larger than the sum of its proper divisors (1688822695).

30123212234309 is a wasteful number, since it uses less digits than its factorization.

30123212234309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688822694.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 30123212234309 in words is "thirty trillion, one hundred twenty-three billion, two hundred twelve million, two hundred thirty-four thousand, three hundred nine".