30313113212 has 12 divisors (see below), whose sum is σ = 55354380816. Its totient is φ = 14497575840.

The previous prime is 30313113211. The next prime is 30313113221. The reversal of 30313113212 is 21231131303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313113211) 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, 164745089 + ... + 164745272.

It is an arithmetic number, because the mean of its divisors is an integer number (4612865068).

Almost surely, 2^30313113212 is an apocalyptic number.

It is an amenable number.

30313113212 is a deficient number, since it is larger than the sum of its proper divisors (25041267604).

30313113212 is a wasteful number, since it uses less digits than its factorization.

30313113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329490388 (or 329490386 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30313113212 its reverse (21231131303), we get a palindrome (51544244515).

The spelling of 30313113212 in words is "thirty billion, three hundred thirteen million, one hundred thirteen thousand, two hundred twelve".