1311402002 has 16 divisors (see below), whose sum is σ = 2109706560. Its totient is φ = 609468912.

The previous prime is 1311401957. The next prime is 1311402013. The reversal of 1311402002 is 2002041131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323558 + ... + 327585.

It is an arithmetic number, because the mean of its divisors is an integer number (131856660).

Almost surely, 2^1311402002 is an apocalyptic number.

1311402002 is a deficient number, since it is larger than the sum of its proper divisors (798304558).

1311402002 is a wasteful number, since it uses less digits than its factorization.

1311402002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651217.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1311402002 is about 36213.2848827609. The cubic root of 1311402002 is about 1094.5743853009.

Adding to 1311402002 its reverse (2002041131), we get a palindrome (3313443133).

The spelling of 1311402002 in words is "one billion, three hundred eleven million, four hundred two thousand, two".