1103008321681 has 16 divisors (see below), whose sum is σ = 1279249372800. Its totient is φ = 931509456768.

The previous prime is 1103008321607. The next prime is 1103008321691. The reversal of 1103008321681 is 1861238003011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1103008321681 - 2²³ = 1102999933073 is a prime.

It is a super-2 number, since 2×1103008321681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1103008321601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2951746 + ... + 3304363.

It is an arithmetic number, because the mean of its divisors is an integer number (79953085800).

Almost surely, 2^{1103008321681} is an apocalyptic number.

It is an amenable number.

1103008321681 is a deficient number, since it is larger than the sum of its proper divisors (176241051119).

1103008321681 is an equidigital number, since it uses as much as digits as its factorization.

1103008321681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256488.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 1103008321681 in words is "one trillion, one hundred three billion, eight million, three hundred twenty-one thousand, six hundred eighty-one".