420103143 has 12 divisors (see below), whose sum is σ = 623216568. Its totient is φ = 272499120.

The previous prime is 420103139. The next prime is 420103147. The reversal of 420103143 is 341301024.

420103143 is a `hidden beast` number, since 420 + 103 + 143 = 666.

It is an interprime number because it is at equal distance from previous prime (420103139) and next prime (420103147).

It is not a de Polignac number, because 420103143 - 2² = 420103139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420103147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 630453 + ... + 631118.

It is an arithmetic number, because the mean of its divisors is an integer number (51934714).

Almost surely, 2^420103143 is an apocalyptic number.

420103143 is a deficient number, since it is larger than the sum of its proper divisors (203113425).

420103143 is a wasteful number, since it uses less digits than its factorization.

420103143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261614 (or 1261611 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 420103143 is about 20496.4178089734. The cubic root of 420103143 is about 748.9485372570.

Adding to 420103143 its reverse (341301024), we get a palindrome (761404167).

The spelling of 420103143 in words is "four hundred twenty million, one hundred three thousand, one hundred forty-three".