1121234110081 has 2 divisors, whose sum is σ = 1121234110082. Its totient is φ = 1121234110080.

The previous prime is 1121234110079. The next prime is 1121234110103. The reversal of 1121234110081 is 1800114321211.

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., 915648041025 + 205586069056 = 956895^2 + 453416^2 .

It is an emirp because it is prime and its reverse (1800114321211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121234110081 - 2¹ = 1121234110079 is a prime.

It is a super-2 number, since 2×1121234110081² (a number of 25 digits) contains 22 as substring.

Together with 1121234110079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1121234113081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560617055040 + 560617055041.

It is an arithmetic number, because the mean of its divisors is an integer number (560617055041).

Almost surely, 2^{1121234110081} is an apocalyptic number.

It is an amenable number.

1121234110081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121234110081 is an equidigital number, since it uses as much as digits as its factorization.

1121234110081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

Adding to 1121234110081 its reverse (1800114321211), we get a palindrome (2921348431292).

The spelling of 1121234110081 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-four million, one hundred ten thousand, eighty-one".