30123343142 has 16 divisors (see below), whose sum is σ = 46033459920. Its totient is φ = 14779774368.

The previous prime is 30123343141. The next prime is 30123343153. The reversal of 30123343142 is 24134332103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123343141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163433 + ... + 294884.

It is an arithmetic number, because the mean of its divisors is an integer number (2877091245).

Almost surely, 2^30123343142 is an apocalyptic number.

30123343142 is a deficient number, since it is larger than the sum of its proper divisors (15910116778).

30123343142 is a wasteful number, since it uses less digits than its factorization.

30123343142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458935.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 30123343142 its reverse (24134332103), we get a palindrome (54257675245).

The spelling of 30123343142 in words is "thirty billion, one hundred twenty-three million, three hundred forty-three thousand, one hundred forty-two".