100020343 has 2 divisors, whose sum is σ = 100020344. Its totient is φ = 100020342.

The previous prime is 100020337. The next prime is 100020379. The reversal of 100020343 is 343020001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100020343 - 2¹⁷ = 99889271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100020383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010171 + 50010172.

It is an arithmetic number, because the mean of its divisors is an integer number (50010172).

Almost surely, 2^100020343 is an apocalyptic number.

100020343 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020343 is an equidigital number, since it uses as much as digits as its factorization.

100020343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 100020343 is about 10001.0170982756. The cubic root of 100020343 is about 464.1903558411.

Adding to 100020343 its reverse (343020001), we get a palindrome (443040344).

The spelling of 100020343 in words is "one hundred million, twenty thousand, three hundred forty-three".