1101111221053 has 2 divisors, whose sum is σ = 1101111221054. Its totient is φ = 1101111221052.

The previous prime is 1101111221051. The next prime is 1101111221069. The reversal of 1101111221053 is 3501221111011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1090493567289 + 10617653764 = 1044267^2 + 103042^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101111221053 - 2¹ = 1101111221051 is a prime.

It is a super-2 number, since 2×1101111221053² (a number of 25 digits) contains 22 as substring.

Together with 1101111221051, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1101111221053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101111221051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555610526 + 550555610527.

It is an arithmetic number, because the mean of its divisors is an integer number (550555610527).

Almost surely, 2^{1101111221053} is an apocalyptic number.

It is an amenable number.

1101111221053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101111221053 is an equidigital number, since it uses as much as digits as its factorization.

1101111221053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 1101111221053 its reverse (3501221111011), we get a palindrome (4602332332064).

The spelling of 1101111221053 in words is "one trillion, one hundred one billion, one hundred eleven million, two hundred twenty-one thousand, fifty-three".