30301231212 has 72 divisors (see below), whose sum is σ = 88074045696. Its totient is φ = 8604369504.

The previous prime is 30301231199. The next prime is 30301231243. The reversal of 30301231212 is 21213210303.

It is a super-2 number, since 2×30301231212² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327768 + ... + 409919.

Almost surely, 2^30301231212 is an apocalyptic number.

It is an amenable number.

30301231212 is an abundant number, since it is smaller than the sum of its proper divisors (57772814484).

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

30301231212 is a wasteful number, since it uses less digits than its factorization.

30301231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737867 (or 737862 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30301231212 its reverse (21213210303), we get a palindrome (51514441515).

The spelling of 30301231212 in words is "thirty billion, three hundred one million, two hundred thirty-one thousand, two hundred twelve".