101000243 has 4 divisors (see below), whose sum is σ = 104483040. Its totient is φ = 97517448.

The previous prime is 101000239. The next prime is 101000267. The reversal of 101000243 is 342000101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101000243 - 2² = 101000239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101000203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1741355 + ... + 1741412.

It is an arithmetic number, because the mean of its divisors is an integer number (26120760).

Almost surely, 2^101000243 is an apocalyptic number.

101000243 is a deficient number, since it is larger than the sum of its proper divisors (3482797).

101000243 is an equidigital number, since it uses as much as digits as its factorization.

101000243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482796.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 101000243 is about 10049.8877108155. The cubic root of 101000243 is about 465.7013242630.

Adding to 101000243 its reverse (342000101), we get a palindrome (443000344).

The spelling of 101000243 in words is "one hundred one million, two hundred forty-three", and thus it is an aban number.