1223002312 has 32 divisors (see below), whose sum is σ = 2624500800. Its totient is φ = 523387584.

The previous prime is 1223002283. The next prime is 1223002331. The reversal of 1223002312 is 2132003221.

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, 24303 + ... + 55105.

It is an arithmetic number, because the mean of its divisors is an integer number (82015650).

Almost surely, 2^1223002312 is an apocalyptic number.

It is an amenable number.

1223002312 is an abundant number, since it is smaller than the sum of its proper divisors (1401498488).

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

1223002312 is a wasteful number, since it uses less digits than its factorization.

1223002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31525 (or 31521 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1223002312 is about 34971.4499556424. The cubic root of 1223002312 is about 1069.4055311433.

Adding to 1223002312 its reverse (2132003221), we get a palindrome (3355005533).

Subtracting 1223002312 from its reverse (2132003221), we obtain a palindrome (909000909).

The spelling of 1223002312 in words is "one billion, two hundred twenty-three million, two thousand, three hundred twelve".