1100337500981 has 2 divisors, whose sum is σ = 1100337500982. Its totient is φ = 1100337500980.

The previous prime is 1100337500959. The next prime is 1100337501013. The reversal of 1100337500981 is 1890057330011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1032999845956 + 67337655025 = 1016366^2 + 259495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100337500981 - 2⁶ = 1100337500917 is a prime.

It is a super-2 number, since 2×1100337500981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100337500281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550168750490 + 550168750491.

It is an arithmetic number, because the mean of its divisors is an integer number (550168750491).

Almost surely, 2^{1100337500981} is an apocalyptic number.

It is an amenable number.

1100337500981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100337500981 is an equidigital number, since it uses as much as digits as its factorization.

1100337500981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 1100337500981 in words is "one trillion, one hundred billion, three hundred thirty-seven million, five hundred thousand, nine hundred eighty-one".