30142404223 has 4 divisors (see below), whose sum is σ = 30150681928. Its totient is φ = 30134126520.

The previous prime is 30142404209. The next prime is 30142404247. The reversal of 30142404223 is 32240424103.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30142404223 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 (30142404263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4133388 + ... + 4140673.

It is an arithmetic number, because the mean of its divisors is an integer number (7537670482).

Almost surely, 2^30142404223 is an apocalyptic number.

30142404223 is a deficient number, since it is larger than the sum of its proper divisors (8277705).

30142404223 is an equidigital number, since it uses as much as digits as its factorization.

30142404223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8277704.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 30142404223 its reverse (32240424103), we get a palindrome (62382828326).

The spelling of 30142404223 in words is "thirty billion, one hundred forty-two million, four hundred four thousand, two hundred twenty-three".