1312223330 has 32 divisors (see below), whose sum is σ = 2583118080. Its totient is φ = 475989120.

The previous prime is 1312223329. The next prime is 1312223359. The reversal of 1312223330 is 333222131.

It is a Curzon number.

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, 30407 + ... + 59573.

It is an arithmetic number, because the mean of its divisors is an integer number (80722440).

Almost surely, 2^1312223330 is an apocalyptic number.

1312223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312223330 is a deficient number, since it is larger than the sum of its proper divisors (1270894750).

1312223330 is a wasteful number, since it uses less digits than its factorization.

1312223330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29594.

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

The square root of 1312223330 is about 36224.6232554598. The cubic root of 1312223330 is about 1094.8028474031.

Adding to 1312223330 its reverse (333222131), we get a palindrome (1645445461).

The spelling of 1312223330 in words is "one billion, three hundred twelve million, two hundred twenty-three thousand, three hundred thirty".