30091109209391 has 4 divisors (see below), whose sum is σ = 30091493882784. Its totient is φ = 30090724536000.

The previous prime is 30091109209349. The next prime is 30091109209393. The reversal of 30091109209391 is 19390290119003.

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

It is a cyclic number.

It is not a de Polignac number, because 30091109209391 - 2¹⁴ = 30091109193007 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 (30091109209393) 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, 192219335 + ... + 192375816.

It is an arithmetic number, because the mean of its divisors is an integer number (7522873470696).

Almost surely, 2^{30091109209391} is an apocalyptic number.

30091109209391 is a deficient number, since it is larger than the sum of its proper divisors (384673393).

30091109209391 is an equidigital number, since it uses as much as digits as its factorization.

30091109209391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384673392.

The product of its (nonzero) digits is 118098, while the sum is 47.

The spelling of 30091109209391 in words is "thirty trillion, ninety-one billion, one hundred nine million, two hundred nine thousand, three hundred ninety-one".