30142123212 has 48 divisors (see below), whose sum is σ = 71466655232. Its totient is φ = 9885585600.

The previous prime is 30142123201. The next prime is 30142123229. The reversal of 30142123212 is 21232124103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663837 + ... + 707787.

Almost surely, 2^30142123212 is an apocalyptic number.

It is an amenable number.

30142123212 is an abundant number, since it is smaller than the sum of its proper divisors (41324532020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30142123212 is a wasteful number, since it uses less digits than its factorization.

30142123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44878 (or 44876 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 30142123212 its reverse (21232124103), we get a palindrome (51374247315).

The spelling of 30142123212 in words is "thirty billion, one hundred forty-two million, one hundred twenty-three thousand, two hundred twelve".