1313232311 has 16 divisors (see below), whose sum is σ = 1402057728. Its totient is φ = 1227151200.

The previous prime is 1313232307. The next prime is 1313232313. The reversal of 1313232311 is 1132323131.

It is not a de Polignac number, because 1313232311 - 2² = 1313232307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313232313) 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 15 ways as a sum of consecutive naturals, for example, 1016576 + ... + 1017866.

It is an arithmetic number, because the mean of its divisors is an integer number (87628608).

Almost surely, 2^1313232311 is an apocalyptic number.

1313232311 is a deficient number, since it is larger than the sum of its proper divisors (88825417).

1313232311 is a wasteful number, since it uses less digits than its factorization.

1313232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302.

The product of its digits is 324, while the sum is 20.

The square root of 1313232311 is about 36238.5473080807. The cubic root of 1313232311 is about 1095.0833769557.

Adding to 1313232311 its reverse (1132323131), we get a palindrome (2445555442).

The spelling of 1313232311 in words is "one billion, three hundred thirteen million, two hundred thirty-two thousand, three hundred eleven".