101003205243 has 4 divisors (see below), whose sum is σ = 134670940328. Its totient is φ = 67335470160.

The previous prime is 101003205239. The next prime is 101003205257. The reversal of 101003205243 is 342502300101.

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

It is not a de Polignac number, because 101003205243 - 2² = 101003205239 is a prime.

It is a super-4 number, since 4×101003205243⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101003205203) 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, 16833867538 + ... + 16833867543.

It is an arithmetic number, because the mean of its divisors is an integer number (33667735082).

Almost surely, 2^101003205243 is an apocalyptic number.

101003205243 is a deficient number, since it is larger than the sum of its proper divisors (33667735085).

101003205243 is an equidigital number, since it uses as much as digits as its factorization.

101003205243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33667735084.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 101003205243 its reverse (342502300101), we get a palindrome (443505505344).

The spelling of 101003205243 in words is "one hundred one billion, three million, two hundred five thousand, two hundred forty-three".