1312213330 has 16 divisors (see below), whose sum is σ = 2388524760. Its totient is φ = 518987392.

The previous prime is 1312213313. The next prime is 1312213339. The reversal of 1312213330 is 333122131.

It can be written as a sum of positive squares in 4 ways, for example, as 417425761 + 894787569 = 20431^2 + 29913^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312213298 and 1312213307.

It is not an unprimeable number, because it can be changed into a prime (1312213339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736309 + ... + 738088.

Almost surely, 2^1312213330 is an apocalyptic number.

1312213330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312213330 is a deficient number, since it is larger than the sum of its proper divisors (1076311430).

1312213330 is a wasteful number, since it uses less digits than its factorization.

1312213330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474493.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1312213330 is about 36224.4852275364. The cubic root of 1312213330 is about 1094.8000663581.

Adding to 1312213330 its reverse (333122131), we get a palindrome (1645335461).

The spelling of 1312213330 in words is "one billion, three hundred twelve million, two hundred thirteen thousand, three hundred thirty".