12120302312 has 32 divisors (see below), whose sum is σ = 23927239200. Its totient is φ = 5739854400.

The previous prime is 12120302291. The next prime is 12120302377. The reversal of 12120302312 is 21320302121.

It is a super-3 number, since 3×12120302312³ (a number of 31 digits) contains 333 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, 1006487 + ... + 1018457.

It is an arithmetic number, because the mean of its divisors is an integer number (747726225).

Almost surely, 2^12120302312 is an apocalyptic number.

It is an amenable number.

12120302312 is a deficient number, since it is larger than the sum of its proper divisors (11806936888).

12120302312 is a wasteful number, since it uses less digits than its factorization.

12120302312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18657 (or 18653 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12120302312 its reverse (21320302121), we get a palindrome (33440604433).

It can be divided in two parts, 12120 and 302312, that added together give a cube (314432 = 68³).

The spelling of 12120302312 in words is "twelve billion, one hundred twenty million, three hundred two thousand, three hundred twelve".