11211404281343 has 12 divisors (see below), whose sum is σ = 13052975050872. Its totient is φ = 9601568580240.

The previous prime is 11211404281321. The next prime is 11211404281367. The reversal of 11211404281343 is 34318240411211.

It is not a de Polignac number, because 11211404281343 - 2¹⁸ = 11211404019199 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 (11211404281303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97638680 + ... + 97753437.

It is an arithmetic number, because the mean of its divisors is an integer number (1087747920906).

Almost surely, 2^{11211404281343} is an apocalyptic number.

11211404281343 is a deficient number, since it is larger than the sum of its proper divisors (1841570769529).

11211404281343 is a wasteful number, since it uses less digits than its factorization.

11211404281343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195393302 (or 195393295 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

Adding to 11211404281343 its reverse (34318240411211), we get a palindrome (45529644692554).

The spelling of 11211404281343 in words is "eleven trillion, two hundred eleven billion, four hundred four million, two hundred eighty-one thousand, three hundred forty-three".