1312311141 has 36 divisors (see below), whose sum is σ = 2036607300. Its totient is φ = 814015488.

The previous prime is 1312311139. The next prime is 1312311151. The reversal of 1312311141 is 1411132131.

It is a happy number.

1312311141 is a `hidden beast` number, since 1 + 312 + 311 + 1 + 41 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 60516 + 1312250625 = 246^2 + 36225^2 .

It is not a de Polignac number, because 1312311141 - 2¹ = 1312311139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312311101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 228655 + ... + 234323.

It is an arithmetic number, because the mean of its divisors is an integer number (56572425).

Almost surely, 2^1312311141 is an apocalyptic number.

It is an amenable number.

1312311141 is a deficient number, since it is larger than the sum of its proper divisors (724296159).

1312311141 is a wasteful number, since it uses less digits than its factorization.

1312311141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798 (or 5778 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1312311141 is about 36225.8352698734. The cubic root of 1312311141 is about 1094.8272674304.

Adding to 1312311141 its reverse (1411132131), we get a palindrome (2723443272).

The spelling of 1312311141 in words is "one billion, three hundred twelve million, three hundred eleven thousand, one hundred forty-one".