1312002312330 has 128 divisors (see below), whose sum is σ = 3219039118080. Its totient is φ = 342110545920.

The previous prime is 1312002312329. The next prime is 1312002312373. The reversal of 1312002312330 is 332132002131.

It is a junction number, because it is equal to n+sod(n) for n = 1312002312297 and 1312002312306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 993188070 + ... + 993189390.

It is an arithmetic number, because the mean of its divisors is an integer number (25148743110).

Almost surely, 2^{1312002312330} is an apocalyptic number.

1312002312330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312002312330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609519559040).

1312002312330 is an abundant number, since it is smaller than the sum of its proper divisors (1907036805750).

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

1312002312330 is a wasteful number, since it uses less digits than its factorization.

1312002312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1312002312330 its reverse (332132002131), we get a palindrome (1644134314461).

The spelling of 1312002312330 in words is "one trillion, three hundred twelve billion, two million, three hundred twelve thousand, three hundred thirty".