11212110344453 has 2 divisors, whose sum is σ = 11212110344454. Its totient is φ = 11212110344452.

The previous prime is 11212110344431. The next prime is 11212110344587. The reversal of 11212110344453 is 35444301121211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8216604397444 + 2995505947009 = 2866462^2 + 1730753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212110344453 is a prime.

It is a super-2 number, since 2×11212110344453² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11212110344423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606055172226 + 5606055172227.

It is an arithmetic number, because the mean of its divisors is an integer number (5606055172227).

Almost surely, 2^{11212110344453} is an apocalyptic number.

It is an amenable number.

11212110344453 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212110344453 is an equidigital number, since it uses as much as digits as its factorization.

11212110344453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 11212110344453 its reverse (35444301121211), we get a palindrome (46656411465664).

The spelling of 11212110344453 in words is "eleven trillion, two hundred twelve billion, one hundred ten million, three hundred forty-four thousand, four hundred fifty-three".