1320013002 has 64 divisors (see below), whose sum is σ = 3296102400. Its totient is φ = 342377280.

The previous prime is 1320012997. The next prime is 1320013007. The reversal of 1320013002 is 2003100231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1320012997) and next prime (1320013007).

It is not an unprimeable number, because it can be changed into a prime (1320013007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423024 + ... + 426132.

It is an arithmetic number, because the mean of its divisors is an integer number (51501600).

Almost surely, 2^1320013002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320013002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1648051200).

1320013002 is an abundant number, since it is smaller than the sum of its proper divisors (1976089398).

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

1320013002 is a wasteful number, since it uses less digits than its factorization.

1320013002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1320013002 is about 36331.9831828652. The cubic root of 1320013002 is about 1096.9649121643.

Adding to 1320013002 its reverse (2003100231), we get a palindrome (3323113233).

The spelling of 1320013002 in words is "one billion, three hundred twenty million, thirteen thousand, two".