10421103021 has 32 divisors (see below), whose sum is σ = 16327645440. Its totient is φ = 5787334656.

The previous prime is 10421103013. The next prime is 10421103041. The reversal of 10421103021 is 12030112401.

It is not a de Polignac number, because 10421103021 - 2³ = 10421103013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421103041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714615 + ... + 729051.

It is an arithmetic number, because the mean of its divisors is an integer number (510238920).

Almost surely, 2^10421103021 is an apocalyptic number.

It is an amenable number.

10421103021 is a deficient number, since it is larger than the sum of its proper divisors (5906542419).

10421103021 is a wasteful number, since it uses less digits than its factorization.

10421103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15413.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10421103021 its reverse (12030112401), we get a palindrome (22451215422).

The spelling of 10421103021 in words is "ten billion, four hundred twenty-one million, one hundred three thousand, twenty-one".