1311032211043 has 2 divisors, whose sum is σ = 1311032211044. Its totient is φ = 1311032211042.

The previous prime is 1311032211007. The next prime is 1311032211157. The reversal of 1311032211043 is 3401122301131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311032211043 is a prime.

It is a super-2 number, since 2×1311032211043² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1311032211443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655516105521 + 655516105522.

It is an arithmetic number, because the mean of its divisors is an integer number (655516105522).

Almost surely, 2^{1311032211043} is an apocalyptic number.

1311032211043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311032211043 is an equidigital number, since it uses as much as digits as its factorization.

1311032211043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1311032211043 its reverse (3401122301131), we get a palindrome (4712154512174).

The spelling of 1311032211043 in words is "one trillion, three hundred eleven billion, thirty-two million, two hundred eleven thousand, forty-three".