1310001311 has 12 divisors (see below), whose sum is σ = 1358927232. Its totient is φ = 1262783424.

The previous prime is 1310001289. The next prime is 1310001347. The reversal of 1310001311 is 1131000131.

It is a happy number.

It is not a de Polignac number, because 1310001311 - 2¹⁰ = 1310000287 is a prime.

It is a super-2 number, since 2×1310001311² = 3432206869643437442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310001292 and 1310001301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310001211) 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, 913451 + ... + 914883.

It is an arithmetic number, because the mean of its divisors is an integer number (113243936).

Almost surely, 2^1310001311 is an apocalyptic number.

1310001311 is a deficient number, since it is larger than the sum of its proper divisors (48925921).

1310001311 is a wasteful number, since it uses less digits than its factorization.

1310001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2549 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1310001311 is about 36193.9402524787. The cubic root of 1310001311 is about 1094.1845463699.

Adding to 1310001311 its reverse (1131000131), we get a palindrome (2441001442).

The spelling of 1310001311 in words is "one billion, three hundred ten million, one thousand, three hundred eleven".