420210202103 has 2 divisors, whose sum is σ = 420210202104. Its totient is φ = 420210202102.

The previous prime is 420210202099. The next prime is 420210202109. The reversal of 420210202103 is 301202012024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420210202103 - 2² = 420210202099 is a prime.

It is a super-2 number, since 2×420210202103² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420210202109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210105101051 + 210105101052.

It is an arithmetic number, because the mean of its divisors is an integer number (210105101052).

Almost surely, 2^420210202103 is an apocalyptic number.

420210202103 is a deficient number, since it is larger than the sum of its proper divisors (1).

420210202103 is an equidigital number, since it uses as much as digits as its factorization.

420210202103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 420210202103 its reverse (301202012024), we get a palindrome (721412214127).

The spelling of 420210202103 in words is "four hundred twenty billion, two hundred ten million, two hundred two thousand, one hundred three".