42021000103 has 2 divisors, whose sum is σ = 42021000104. Its totient is φ = 42021000102.

The previous prime is 42021000019. The next prime is 42021000143. The reversal of 42021000103 is 30100012024.

42021000103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42021000103 - 2²⁹ = 41484129191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42021000143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010500051 + 21010500052.

It is an arithmetic number, because the mean of its divisors is an integer number (21010500052).

Almost surely, 2^42021000103 is an apocalyptic number.

42021000103 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021000103 is an equidigital number, since it uses as much as digits as its factorization.

42021000103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 42021000103 its reverse (30100012024), we get a palindrome (72121012127).

The spelling of 42021000103 in words is "forty-two billion, twenty-one million, one hundred three", and thus it is an aban number.