1311344001 has 12 divisors (see below), whose sum is σ = 2066360400. Its totient is φ = 794753880.

The previous prime is 1311343993. The next prime is 1311344009. The reversal of 1311344001 is 1004431131.

1311344001 is a `hidden beast` number, since 131 + 134 + 400 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1311343993) and next prime (1311344009).

It is not a de Polignac number, because 1311344001 - 2³ = 1311343993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311344009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6622851 + ... + 6623048.

It is an arithmetic number, because the mean of its divisors is an integer number (172196700).

Almost surely, 2^1311344001 is an apocalyptic number.

1311344001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311344001 is a deficient number, since it is larger than the sum of its proper divisors (755016399).

1311344001 is a wasteful number, since it uses less digits than its factorization.

1311344001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13245916 (or 13245913 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1311344001 is about 36212.4840490127. The cubic root of 1311344001 is about 1094.5582480308.

Adding to 1311344001 its reverse (1004431131), we get a palindrome (2315775132).

The spelling of 1311344001 in words is "one billion, three hundred eleven million, three hundred forty-four thousand, one".