1311332341 has 16 divisors (see below), whose sum is σ = 1444080960. Its totient is φ = 1180894720.

The previous prime is 1311332339. The next prime is 1311332357. The reversal of 1311332341 is 1432331131.

It is a cyclic number.

It is not a de Polignac number, because 1311332341 - 2¹ = 1311332339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311332381) 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, 575781 + ... + 578053.

It is an arithmetic number, because the mean of its divisors is an integer number (90255060).

Almost surely, 2^1311332341 is an apocalyptic number.

1311332341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311332341 is a deficient number, since it is larger than the sum of its proper divisors (132748619).

1311332341 is a wasteful number, since it uses less digits than its factorization.

1311332341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756.

The product of its digits is 648, while the sum is 22.

The square root of 1311332341 is about 36212.3230544521. The cubic root of 1311332341 is about 1094.5550038816. Note that the first 3 decimals are identical.

Adding to 1311332341 its reverse (1432331131), we get a palindrome (2743663472).

It can be divided in two parts, 13113 and 32341, that added together give a palindrome (45454).

The spelling of 1311332341 in words is "one billion, three hundred eleven million, three hundred thirty-two thousand, three hundred forty-one".