1313020002 has 32 divisors (see below), whose sum is σ = 3007660032. Its totient is φ = 374339664.

The previous prime is 1313019997. The next prime is 1313020013. The reversal of 1313020002 is 2000203131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313020002.

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, 13858 + ... + 53085.

It is an arithmetic number, because the mean of its divisors is an integer number (93989376).

Almost surely, 2^1313020002 is an apocalyptic number.

1313020002 is an abundant number, since it is smaller than the sum of its proper divisors (1694640030).

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

1313020002 is a wasteful number, since it uses less digits than its factorization.

1313020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67422.

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

The square root of 1313020002 is about 36235.6178641954. The cubic root of 1313020002 is about 1095.0243600844.

Adding to 1313020002 its reverse (2000203131), we get a palindrome (3313223133).

The spelling of 1313020002 in words is "one billion, three hundred thirteen million, twenty thousand, two".