30820939694317 has 4 divisors (see below), whose sum is σ = 31815163555456. Its totient is φ = 29826715833180.

The previous prime is 30820939694273. The next prime is 30820939694333. The reversal of 30820939694317 is 71349693902803.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30820939694317 - 2⁷ = 30820939694189 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 (30820939694617) 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, 497111930523 + ... + 497111930584.

It is an arithmetic number, because the mean of its divisors is an integer number (7953790888864).

Almost surely, 2^{30820939694317} is an apocalyptic number.

It is an amenable number.

30820939694317 is a deficient number, since it is larger than the sum of its proper divisors (994223861139).

30820939694317 is an equidigital number, since it uses as much as digits as its factorization.

30820939694317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994223861138.

The product of its (nonzero) digits is 52907904, while the sum is 64.

The spelling of 30820939694317 in words is "thirty trillion, eight hundred twenty billion, nine hundred thirty-nine million, six hundred ninety-four thousand, three hundred seventeen".