30082817923 has 4 divisors (see below), whose sum is σ = 30147235560. Its totient is φ = 30018400288.

The previous prime is 30082817899. The next prime is 30082817927. The reversal of 30082817923 is 32971828003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32971828003 = 9473 ⋅3480611.

It is a cyclic number.

It is not a de Polignac number, because 30082817923 - 2⁹ = 30082817411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30082817923.

It is not an unprimeable number, because it can be changed into a prime (30082817927) 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, 32208118 + ... + 32209051.

It is an arithmetic number, because the mean of its divisors is an integer number (7536808890).

Almost surely, 2^30082817923 is an apocalyptic number.

30082817923 is a deficient number, since it is larger than the sum of its proper divisors (64417637).

30082817923 is an equidigital number, since it uses as much as digits as its factorization.

30082817923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64417636.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 30082817923 in words is "thirty billion, eighty-two million, eight hundred seventeen thousand, nine hundred twenty-three".