1311041121 has 16 divisors (see below), whose sum is σ = 1884750336. Its totient is φ = 805838976.

The previous prime is 1311041113. The next prime is 1311041131. The reversal of 1311041121 is 1211401131.

It is not a de Polignac number, because 1311041121 - 2³ = 1311041113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1311041121.

It is not an unprimeable number, because it can be changed into a prime (1311041131) 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, 14181 + ... + 53133.

It is an arithmetic number, because the mean of its divisors is an integer number (117796896).

Almost surely, 2^1311041121 is an apocalyptic number.

It is an amenable number.

1311041121 is a deficient number, since it is larger than the sum of its proper divisors (573709215).

1311041121 is a wasteful number, since it uses less digits than its factorization.

1311041121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39832.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1311041121 is about 36208.3018243054. The cubic root of 1311041121 is about 1094.4739718153.

Adding to 1311041121 its reverse (1211401131), we get a palindrome (2522442252).

The spelling of 1311041121 in words is "one billion, three hundred eleven million, forty-one thousand, one hundred twenty-one".