1313001311 has 8 divisors (see below), whose sum is σ = 1366032384. Its totient is φ = 1260637560.

The previous prime is 1313001241. The next prime is 1313001379. The reversal of 1313001311 is 1131003131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313001311 - 2²² = 1308807007 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 (1313001611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162815 + ... + 170688.

It is an arithmetic number, because the mean of its divisors is an integer number (170754048).

Almost surely, 2^1313001311 is an apocalyptic number.

1313001311 is a deficient number, since it is larger than the sum of its proper divisors (53031073).

1313001311 is a wasteful number, since it uses less digits than its factorization.

1313001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333661.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1313001311 is about 36235.3599540559. The cubic root of 1313001311 is about 1095.0191641246.

Adding to 1313001311 its reverse (1131003131), we get a palindrome (2444004442).

The spelling of 1313001311 in words is "one billion, three hundred thirteen million, one thousand, three hundred eleven".