420102743 has 2 divisors, whose sum is σ = 420102744. Its totient is φ = 420102742.

The previous prime is 420102703. The next prime is 420102821. The reversal of 420102743 is 347201024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420102743 - 2¹⁰ = 420101719 is a prime.

It is a super-2 number, since 2×420102743² = 352972629352248098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420102703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210051371 + 210051372.

It is an arithmetic number, because the mean of its divisors is an integer number (210051372).

Almost surely, 2^420102743 is an apocalyptic number.

420102743 is a deficient number, since it is larger than the sum of its proper divisors (1).

420102743 is an equidigital number, since it uses as much as digits as its factorization.

420102743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 420102743 is about 20496.4080511684. The cubic root of 420102743 is about 748.9482995539.

Adding to 420102743 its reverse (347201024), we get a palindrome (767303767).

The spelling of 420102743 in words is "four hundred twenty million, one hundred two thousand, seven hundred forty-three".