2100034243 has 4 divisors (see below), whose sum is σ = 2101242208. Its totient is φ = 2098826280.

The previous prime is 2100034231. The next prime is 2100034249. The reversal of 2100034243 is 3424300012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100034243 is a prime.

It is a super-4 number, since 4×2100034243⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100034243.

It is not an unprimeable number, because it can be changed into a prime (2100034249) 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, 601371 + ... + 604852.

It is an arithmetic number, because the mean of its divisors is an integer number (525310552).

Almost surely, 2^2100034243 is an apocalyptic number.

2100034243 is a deficient number, since it is larger than the sum of its proper divisors (1207965).

2100034243 is a wasteful number, since it uses less digits than its factorization.

2100034243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207964.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2100034243 is about 45826.1305697961. The cubic root of 2100034243 is about 1280.5861254056.

Adding to 2100034243 its reverse (3424300012), we get a palindrome (5524334255).

The spelling of 2100034243 in words is "two billion, one hundred million, thirty-four thousand, two hundred forty-three".