30234742823 has 4 divisors (see below), whose sum is σ = 30235868640. Its totient is φ = 30233617008.

The previous prime is 30234742817. The next prime is 30234742841. The reversal of 30234742823 is 32824743203.

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 30234742823 - 2²⁴ = 30217965607 is a prime.

It is a super-3 number, since 3×30234742823³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30234748823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521615 + ... + 576672.

It is an arithmetic number, because the mean of its divisors is an integer number (7558967160).

Almost surely, 2^30234742823 is an apocalyptic number.

30234742823 is a deficient number, since it is larger than the sum of its proper divisors (1125817).

30234742823 is a wasteful number, since it uses less digits than its factorization.

30234742823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125816.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 30234742823 in words is "thirty billion, two hundred thirty-four million, seven hundred forty-two thousand, eight hundred twenty-three".