1311414121 has 4 divisors (see below), whose sum is σ = 1329378772. Its totient is φ = 1293449472.

The previous prime is 1311414109. The next prime is 1311414127. The reversal of 1311414121 is 1214141131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 957221721 + 354192400 = 30939^2 + 18820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311414121 - 2⁵ = 1311414089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311414127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8982216 + ... + 8982361.

It is an arithmetic number, because the mean of its divisors is an integer number (332344693).

Almost surely, 2^1311414121 is an apocalyptic number.

It is an amenable number.

1311414121 is a deficient number, since it is larger than the sum of its proper divisors (17964651).

1311414121 is an equidigital number, since it uses as much as digits as its factorization.

1311414121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17964650.

The product of its digits is 96, while the sum is 19.

The square root of 1311414121 is about 36213.4522104701. The cubic root of 1311414121 is about 1094.5777570375.

Adding to 1311414121 its reverse (1214141131), we get a palindrome (2525555252).

The spelling of 1311414121 in words is "one billion, three hundred eleven million, four hundred fourteen thousand, one hundred twenty-one".