10103121021 has 8 divisors (see below), whose sum is σ = 15395232064. Its totient is φ = 5773212000.

The previous prime is 10103120917. The next prime is 10103121031. The reversal of 10103121021 is 12012130101.

10103121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10103121021 - 2²¹ = 10101023869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10103120988 and 10103121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240550480 + ... + 240550521.

It is an arithmetic number, because the mean of its divisors is an integer number (1924404008).

Almost surely, 2^10103121021 is an apocalyptic number.

It is an amenable number.

10103121021 is a deficient number, since it is larger than the sum of its proper divisors (5292111043).

10103121021 is an equidigital number, since it uses as much as digits as its factorization.

10103121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481101011.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 10103121021 its reverse (12012130101), we get a palindrome (22115251122).

The spelling of 10103121021 in words is "ten billion, one hundred three million, one hundred twenty-one thousand, twenty-one".