1311030002 has 4 divisors (see below), whose sum is σ = 1966545006. Its totient is φ = 655515000.

The previous prime is 1311029989. The next prime is 1311030011. The reversal of 1311030002 is 2000301131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1057615441 + 253414561 = 32521^2 + 15919^2 .

It is a super-2 number, since 2×1311030002² = 3437599332288240008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327757499 + ... + 327757502.

Almost surely, 2^1311030002 is an apocalyptic number.

1311030002 is a deficient number, since it is larger than the sum of its proper divisors (655515004).

1311030002 is an equidigital number, since it uses as much as digits as its factorization.

1311030002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655515003.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1311030002 is about 36208.1482818440. The cubic root of 1311030002 is about 1094.4708777119.

Adding to 1311030002 its reverse (2000301131), we get a palindrome (3311331133).

The spelling of 1311030002 in words is "one billion, three hundred eleven million, thirty thousand, two".