1103031103021 has 12 divisors (see below), whose sum is σ = 1135580560128. Its totient is φ = 1071390358512.

The previous prime is 1103031102931. The next prime is 1103031103049. The reversal of 1103031103021 is 1203011303011.

It is not a de Polignac number, because 1103031103021 - 2¹⁷ = 1103030971949 is a prime.

It is a super-2 number, since 2×1103031103021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103031102986 and 1103031103004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103031103721) 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 in 11 ways as a sum of consecutive naturals, for example, 117300 + ... + 1489906.

It is an arithmetic number, because the mean of its divisors is an integer number (94631713344).

Almost surely, 2^{1103031103021} is an apocalyptic number.

It is an amenable number.

1103031103021 is a deficient number, since it is larger than the sum of its proper divisors (32549457107).

1103031103021 is an equidigital number, since it uses as much as digits as its factorization.

1103031103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373268 (or 1373231 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1103031103021 its reverse (1203011303011), we get a palindrome (2306042406032).

The spelling of 1103031103021 in words is "one trillion, one hundred three billion, thirty-one million, one hundred three thousand, twenty-one".