30143122423 has 4 divisors (see below), whose sum is σ = 30294595600. Its totient is φ = 29991649248.

The previous prime is 30143122417. The next prime is 30143122439. The reversal of 30143122423 is 32422134103.

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 30143122423 - 2⁵ = 30143122391 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 (30143132423) 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, 75736290 + ... + 75736687.

It is an arithmetic number, because the mean of its divisors is an integer number (7573648900).

Almost surely, 2^30143122423 is an apocalyptic number.

30143122423 is a deficient number, since it is larger than the sum of its proper divisors (151473177).

30143122423 is a wasteful number, since it uses less digits than its factorization.

30143122423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151473176.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30143122423 its reverse (32422134103), we get a palindrome (62565256526).

The spelling of 30143122423 in words is "thirty billion, one hundred forty-three million, one hundred twenty-two thousand, four hundred twenty-three".