1003021103021 has 12 divisors (see below), whose sum is σ = 1166853934620. Its totient is φ = 859677638400.

The previous prime is 1003021102999. The next prime is 1003021103039. The reversal of 1003021103021 is 1203011203001.

It can be written as a sum of positive squares in 2 ways, for example, as 833548914121 + 169472188900 = 912989^2 + 411670^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1003021103021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003021102987 and 1003021103005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003021103041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135485 + ... + 1422813.

It is an arithmetic number, because the mean of its divisors is an integer number (97237827885).

Almost surely, 2^{1003021103021} is an apocalyptic number.

It is an amenable number.

1003021103021 is a deficient number, since it is larger than the sum of its proper divisors (163832831599).

1003021103021 is a wasteful number, since it uses less digits than its factorization.

1003021103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303244 (or 1303237 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1003021103021 its reverse (1203011203001), we get a palindrome (2206032306022).

The spelling of 1003021103021 in words is "one trillion, three billion, twenty-one million, one hundred three thousand, twenty-one".