30133123212 has 24 divisors (see below), whose sum is σ = 70322769216. Its totient is φ = 10042638928.

The previous prime is 30133123187. The next prime is 30133123231. The reversal of 30133123212 is 21232133103.

It is a super-2 number, since 2×30133123212² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143598 + ... + 284405.

It is an arithmetic number, because the mean of its divisors is an integer number (2930115384).

Almost surely, 2^30133123212 is an apocalyptic number.

It is an amenable number.

30133123212 is an abundant number, since it is smaller than the sum of its proper divisors (40189646004).

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

30133123212 is a wasteful number, since it uses less digits than its factorization.

30133123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433877 (or 433875 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30133123212 its reverse (21232133103), we get a palindrome (51365256315).

The spelling of 30133123212 in words is "thirty billion, one hundred thirty-three million, one hundred twenty-three thousand, two hundred twelve".