1313122211 has 16 divisors (see below), whose sum is σ = 1470244608. Its totient is φ = 1166822400.

The previous prime is 1313122207. The next prime is 1313122241. The reversal of 1313122211 is 1122213131.

It is a cyclic number.

It is not a de Polignac number, because 1313122211 - 2² = 1313122207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313122211.

It is not an unprimeable number, because it can be changed into a prime (1313122201) 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, 8780 + ... + 51993.

It is an arithmetic number, because the mean of its divisors is an integer number (91890288).

Almost surely, 2^1313122211 is an apocalyptic number.

1313122211 is a deficient number, since it is larger than the sum of its proper divisors (157122397).

1313122211 is a wasteful number, since it uses less digits than its factorization.

1313122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60862.

The product of its digits is 72, while the sum is 17.

The square root of 1313122211 is about 36237.0281756106. The cubic root of 1313122211 is about 1095.0527725586.

Adding to 1313122211 its reverse (1122213131), we get a palindrome (2435335342).

The spelling of 1313122211 in words is "one billion, three hundred thirteen million, one hundred twenty-two thousand, two hundred eleven".