10103321110621 has 2 divisors, whose sum is σ = 10103321110622. Its totient is φ = 10103321110620.

The previous prime is 10103321110609. The next prime is 10103321110657. The reversal of 10103321110621 is 12601112330101.

It is a happy number.

10103321110621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9834427008121 + 268894102500 = 3135989^2 + 518550^2 .

It is a cyclic number.

It is not a de Polignac number, because 10103321110621 - 2¹⁵ = 10103321077853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10103321110592 and 10103321110601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10103321150621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051660555310 + 5051660555311.

It is an arithmetic number, because the mean of its divisors is an integer number (5051660555311).

Almost surely, 2^{10103321110621} is an apocalyptic number.

It is an amenable number.

10103321110621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10103321110621 is an equidigital number, since it uses as much as digits as its factorization.

10103321110621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 10103321110621 its reverse (12601112330101), we get a palindrome (22704433440722).

The spelling of 10103321110621 in words is "ten trillion, one hundred three billion, three hundred twenty-one million, one hundred ten thousand, six hundred twenty-one".