1312321203330 has 64 divisors (see below), whose sum is σ = 3194325808128. Its totient is φ = 344980771520.

The previous prime is 1312321203299. The next prime is 1312321203337. The reversal of 1312321203330 is 333021232131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312321203330.

It is not an unprimeable number, because it can be changed into a prime (1312321203337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19568917 + ... + 19635863.

It is an arithmetic number, because the mean of its divisors is an integer number (49911340752).

Almost surely, 2^{1312321203330} is an apocalyptic number.

1312321203330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312321203330 is an abundant number, since it is smaller than the sum of its proper divisors (1882004604798).

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

1312321203330 is a wasteful number, since it uses less digits than its factorization.

1312321203330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76231.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1312321203330 its reverse (333021232131), we get a palindrome (1645342435461).

The spelling of 1312321203330 in words is "one trillion, three hundred twelve billion, three hundred twenty-one million, two hundred three thousand, three hundred thirty".