1311241412 has 24 divisors (see below), whose sum is σ = 2517817176. Its totient is φ = 593768448.

The previous prime is 1311241381. The next prime is 1311241423. The reversal of 1311241412 is 2141421131.

It can be written as a sum of positive squares in 4 ways, for example, as 387932416 + 923308996 = 19696^2 + 30386^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235133 + ... + 240644.

It is an arithmetic number, because the mean of its divisors is an integer number (104909049).

Almost surely, 2^1311241412 is an apocalyptic number.

It is an amenable number.

1311241412 is a deficient number, since it is larger than the sum of its proper divisors (1206575764).

1311241412 is a wasteful number, since it uses less digits than its factorization.

1311241412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475847 (or 475845 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 1311241412 is about 36211.0675346640. The cubic root of 1311241412 is about 1094.5297041440.

Adding to 1311241412 its reverse (2141421131), we get a palindrome (3452662543).

The spelling of 1311241412 in words is "one billion, three hundred eleven million, two hundred forty-one thousand, four hundred twelve".