1311323002 has 32 divisors (see below), whose sum is σ = 2219088384. Its totient is φ = 575769600.

The previous prime is 1311322993. The next prime is 1311323003. The reversal of 1311323002 is 2003231131.

It is not an unprimeable number, because it can be changed into a prime (1311323003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457558 + ... + 460414.

It is an arithmetic number, because the mean of its divisors is an integer number (69346512).

Almost surely, 2^1311323002 is an apocalyptic number.

1311323002 is a deficient number, since it is larger than the sum of its proper divisors (907765382).

1311323002 is a wasteful number, since it uses less digits than its factorization.

1311323002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1311323002 is about 36212.1941064056. The cubic root of 1311323002 is about 1094.5524054878.

Adding to 1311323002 its reverse (2003231131), we get a palindrome (3314554133).

The spelling of 1311323002 in words is "one billion, three hundred eleven million, three hundred twenty-three thousand, two".