30123403443142 has 8 divisors (see below), whose sum is σ = 45187267504536. Its totient is φ = 15060980941632.

The previous prime is 30123403443131. The next prime is 30123403443149. The reversal of 30123403443142 is 24134430432103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30123403443098 and 30123403443107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123403443149) 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, 360337728 + ... + 360421315.

It is an arithmetic number, because the mean of its divisors is an integer number (5648408438067).

Almost surely, 2^{30123403443142} is an apocalyptic number.

30123403443142 is a deficient number, since it is larger than the sum of its proper divisors (15063864061394).

30123403443142 is a wasteful number, since it uses less digits than its factorization.

30123403443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720779942.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 30123403443142 its reverse (24134430432103), we get a palindrome (54257833875245).

The spelling of 30123403443142 in words is "thirty trillion, one hundred twenty-three billion, four hundred three million, four hundred forty-three thousand, one hundred forty-two".