10420242103021 has 4 divisors (see below), whose sum is σ = 10423160124544. Its totient is φ = 10417324081500.

The previous prime is 10420242103001. The next prime is 10420242103087. The reversal of 10420242103021 is 12030124202401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10420242103021 - 2⁹ = 10420242102509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10420242102983 and 10420242103001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420242103001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459005405 + ... + 1459012546.

It is an arithmetic number, because the mean of its divisors is an integer number (2605790031136).

Almost surely, 2^{10420242103021} is an apocalyptic number.

It is an amenable number.

10420242103021 is a deficient number, since it is larger than the sum of its proper divisors (2918021523).

10420242103021 is an equidigital number, since it uses as much as digits as its factorization.

10420242103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918021522.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10420242103021 its reverse (12030124202401), we get a palindrome (22450366305422).

The spelling of 10420242103021 in words is "ten trillion, four hundred twenty billion, two hundred forty-two million, one hundred three thousand, twenty-one".