12120233213 has 16 divisors (see below), whose sum is σ = 13355335296. Its totient is φ = 10907581440.

The previous prime is 12120233207. The next prime is 12120233261. The reversal of 12120233213 is 31233202121.

It is a cyclic number.

It is not a de Polignac number, because 12120233213 - 2¹² = 12120229117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120233263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1097045 + ... + 1108037.

It is an arithmetic number, because the mean of its divisors is an integer number (834708456).

Almost surely, 2^12120233213 is an apocalyptic number.

It is an amenable number.

12120233213 is a deficient number, since it is larger than the sum of its proper divisors (1235102083).

12120233213 is a wasteful number, since it uses less digits than its factorization.

12120233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12004.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12120233213 its reverse (31233202121), we get a palindrome (43353435334).

The spelling of 12120233213 in words is "twelve billion, one hundred twenty million, two hundred thirty-three thousand, two hundred thirteen".