1311103122 has 16 divisors (see below), whose sum is σ = 2996807232. Its totient is φ = 374600880.

The previous prime is 1311103097. The next prime is 1311103127. The reversal of 1311103122 is 2213011131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1311103127) 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, 15608329 + ... + 15608412.

It is an arithmetic number, because the mean of its divisors is an integer number (187300452).

Almost surely, 2^1311103122 is an apocalyptic number.

1311103122 is an abundant number, since it is smaller than the sum of its proper divisors (1685704110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311103122 is a wasteful number, since it uses less digits than its factorization.

1311103122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31216753.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1311103122 is about 36209.1579852390. The cubic root of 1311103122 is about 1094.4912246205.

Adding to 1311103122 its reverse (2213011131), we get a palindrome (3524114253).

The spelling of 1311103122 in words is "one billion, three hundred eleven million, one hundred three thousand, one hundred twenty-two".