42021042002603 has 2 divisors, whose sum is σ = 42021042002604. Its totient is φ = 42021042002602.

The previous prime is 42021042002591. The next prime is 42021042002651. The reversal of 42021042002603 is 30620024012024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42021042002603 - 2⁶ = 42021042002539 is a prime.

It is not a weakly prime, because it can be changed into another prime (42021042002503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010521001301 + 21010521001302.

It is an arithmetic number, because the mean of its divisors is an integer number (21010521001302).

Almost surely, 2^{42021042002603} is an apocalyptic number.

42021042002603 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021042002603 is an equidigital number, since it uses as much as digits as its factorization.

42021042002603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 42021042002603 its reverse (30620024012024), we get a palindrome (72641066014627).

The spelling of 42021042002603 in words is "forty-two trillion, twenty-one billion, forty-two million, two thousand, six hundred three".