1003111213021 has 8 divisors (see below), whose sum is σ = 1003857624000. Its totient is φ = 1002364914240.

The previous prime is 1003111213001. The next prime is 1003111213043. The reversal of 1003111213021 is 1203121113001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1003111213021 - 2¹⁷ = 1003111081949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003111212986 and 1003111213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003111213001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27616530 + ... + 27652828.

It is an arithmetic number, because the mean of its divisors is an integer number (125482203000).

Almost surely, 2^{1003111213021} is an apocalyptic number.

It is an amenable number.

1003111213021 is a deficient number, since it is larger than the sum of its proper divisors (746410979).

1003111213021 is a wasteful number, since it uses less digits than its factorization.

1003111213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56099.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1003111213021 its reverse (1203121113001), we get a palindrome (2206232326022).

The spelling of 1003111213021 in words is "one trillion, three billion, one hundred eleven million, two hundred thirteen thousand, twenty-one".