1110235453981 has 2 divisors, whose sum is σ = 1110235453982. Its totient is φ = 1110235453980.

The previous prime is 1110235453979. The next prime is 1110235454057. The reversal of 1110235453981 is 1893545320111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810270022500 + 299965431481 = 900150^2 + 547691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110235453981 - 2¹ = 1110235453979 is a prime.

It is a super-2 number, since 2×1110235453981² (a number of 25 digits) contains 22 as substring.

Together with 1110235453979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110235453961) 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, 555117726990 + 555117726991.

It is an arithmetic number, because the mean of its divisors is an integer number (555117726991).

Almost surely, 2^{1110235453981} is an apocalyptic number.

It is an amenable number.

1110235453981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110235453981 is an equidigital number, since it uses as much as digits as its factorization.

1110235453981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 1110235453981 in words is "one trillion, one hundred ten billion, two hundred thirty-five million, four hundred fifty-three thousand, nine hundred eighty-one".