123311212 has 12 divisors (see below), whose sum is σ = 216197296. Its totient is φ = 61540560.

The previous prime is 123311207. The next prime is 123311249. The reversal of 123311212 is 212113321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26328 + ... + 30655.

Almost surely, 2^123311212 is an apocalyptic number.

It is an amenable number.

123311212 is a deficient number, since it is larger than the sum of its proper divisors (92886084).

123311212 is a wasteful number, since it uses less digits than its factorization.

123311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57528 (or 57526 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 123311212 is about 11104.5581632049. The cubic root of 123311212 is about 497.7380654009.

Adding to 123311212 its reverse (212113321), we get a palindrome (335424533).

The spelling of 123311212 in words is "one hundred twenty-three million, three hundred eleven thousand, two hundred twelve".