11113202981 has 2 divisors, whose sum is σ = 11113202982. Its totient is φ = 11113202980.

The previous prime is 11113202953. The next prime is 11113203047. The reversal of 11113202981 is 18920231111.

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., 11111268100 + 1934881 = 105410^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 11113202981 - 2¹⁴ = 11113186597 is a prime.

It is a super-2 number, since 2×11113202981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11113202281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556601490 + 5556601491.

It is an arithmetic number, because the mean of its divisors is an integer number (5556601491).

Almost surely, 2^11113202981 is an apocalyptic number.

It is an amenable number.

11113202981 is a deficient number, since it is larger than the sum of its proper divisors (1).

11113202981 is an equidigital number, since it uses as much as digits as its factorization.

11113202981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 11113202981 in words is "eleven billion, one hundred thirteen million, two hundred two thousand, nine hundred eighty-one".