1030103210021 has 16 divisors (see below), whose sum is σ = 1054853646000. Its totient is φ = 1005682894848.

The previous prime is 1030103209997. The next prime is 1030103210033. The reversal of 1030103210021 is 1200123010301.

It can be written as a sum of positive squares in 8 ways, for example, as 8932329121 + 1021170880900 = 94511^2 + 1010530^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030103210021 - 2⁶ = 1030103209957 is a prime.

It is a super-2 number, since 2×1030103210021² (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 = 1030103209978 and 1030103210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030103218021) 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, 3342785 + ... + 3637913.

It is an arithmetic number, because the mean of its divisors is an integer number (65928352875).

Almost surely, 2^{1030103210021} is an apocalyptic number.

It is an amenable number.

1030103210021 is a deficient number, since it is larger than the sum of its proper divisors (24750435979).

1030103210021 is a wasteful number, since it uses less digits than its factorization.

1030103210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295688.

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

Adding to 1030103210021 its reverse (1200123010301), we get a palindrome (2230226220322).

The spelling of 1030103210021 in words is "one trillion, thirty billion, one hundred three million, two hundred ten thousand, twenty-one".