1313111211 has 16 divisors (see below), whose sum is σ = 1782834816. Its totient is φ = 859527936.

The previous prime is 1313111203. The next prime is 1313111273. The reversal of 1313111211 is 1121113131.

1313111211 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1313111211 - 2³ = 1313111203 is a prime.

It is a super-2 number, since 2×1313111211² = 3448522104907773042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313111281) 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, 24411 + ... + 56763.

It is an arithmetic number, because the mean of its divisors is an integer number (111427176).

Almost surely, 2^1313111211 is an apocalyptic number.

1313111211 is a deficient number, since it is larger than the sum of its proper divisors (469723605).

1313111211 is a wasteful number, since it uses less digits than its factorization.

1313111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32602.

The product of its digits is 18, while the sum is 15.

The square root of 1313111211 is about 36236.8763968419. The cubic root of 1313111211 is about 1095.0497148046.

Adding to 1313111211 its reverse (1121113131), we get a palindrome (2434224342).

It can be divided in two parts, 13131 and 11211, that added together give a palindrome (24342).

The spelling of 1313111211 in words is "one billion, three hundred thirteen million, one hundred eleven thousand, two hundred eleven".