1223312330 has 32 divisors (see below), whose sum is σ = 2217272400. Its totient is φ = 485936640.

The previous prime is 1223312329. The next prime is 1223312353. The reversal of 1223312330 is 332133221.

It can be written as a sum of positive squares in 8 ways, for example, as 199120321 + 1024192009 = 14111^2 + 32003^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1165646 + ... + 1166694.

Almost surely, 2^1223312330 is an apocalyptic number.

1223312330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223312330 is a deficient number, since it is larger than the sum of its proper divisors (993960070).

1223312330 is a wasteful number, since it uses less digits than its factorization.

1223312330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1223312330 is about 34975.8821189688. The cubic root of 1223312330 is about 1069.4958844624.

Adding to 1223312330 its reverse (332133221), we get a palindrome (1555445551).

The spelling of 1223312330 in words is "one billion, two hundred twenty-three million, three hundred twelve thousand, three hundred thirty".