30308721309213 has 8 divisors (see below), whose sum is σ = 40411694506848. Its totient is φ = 20205781158864.

The previous prime is 30308721309127. The next prime is 30308721309241. The reversal of 30308721309213 is 31290312780303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30308721309213 - 2¹⁰ = 30308721308189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30308721302213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6036195 + ... + 9851552.

It is an arithmetic number, because the mean of its divisors is an integer number (5051461813356).

Almost surely, 2^{30308721309213} is an apocalyptic number.

It is an amenable number.

30308721309213 is a deficient number, since it is larger than the sum of its proper divisors (10102973197635).

30308721309213 is a wasteful number, since it uses less digits than its factorization.

30308721309213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16523643.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 30308721309213 in words is "thirty trillion, three hundred eight billion, seven hundred twenty-one million, three hundred nine thousand, two hundred thirteen".