1223123032312 has 16 divisors (see below), whose sum is σ = 2293375480200. Its totient is φ = 611556237600.

The previous prime is 1223123032267. The next prime is 1223123032319. The reversal of 1223123032312 is 2132303213221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223123032319) 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, 431062 + ... + 1622362.

Almost surely, 2^{1223123032312} is an apocalyptic number.

It is an amenable number.

1223123032312 is a deficient number, since it is larger than the sum of its proper divisors (1070252447888).

1223123032312 is a wasteful number, since it uses less digits than its factorization.

1223123032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319646 (or 1319642 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1223123032312 its reverse (2132303213221), we get a palindrome (3355426245533).

The spelling of 1223123032312 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-three million, thirty-two thousand, three hundred twelve".