15306323223212 has 48 divisors (see below), whose sum is σ = 30667357969920. Its totient is φ = 6548139360000.

The previous prime is 15306323223133. The next prime is 15306323223241. The reversal of 15306323223212 is 21232232360351.

It is a super-3 number, since 3×15306323223212³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 35126489 + ... + 35559567.

It is an arithmetic number, because the mean of its divisors is an integer number (638903291040).

Almost surely, 2^{15306323223212} is an apocalyptic number.

It is an amenable number.

15306323223212 is an abundant number, since it is smaller than the sum of its proper divisors (15361034746708).

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

15306323223212 is a wasteful number, since it uses less digits than its factorization.

15306323223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435342 (or 435340 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 15306323223212 its reverse (21232232360351), we get a palindrome (36538555583563).

The spelling of 15306323223212 in words is "fifteen trillion, three hundred six billion, three hundred twenty-three million, two hundred twenty-three thousand, two hundred twelve".