43205253011 has 4 divisors (see below), whose sum is σ = 43725798312. Its totient is φ = 42684707712.

The previous prime is 43205252971. The next prime is 43205253073. The reversal of 43205253011 is 11035250234.

It is a happy number.

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-43205253011 is a prime.

It is a super-2 number, since 2×43205253011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43205253811) 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, 260272526 + ... + 260272691.

It is an arithmetic number, because the mean of its divisors is an integer number (10931449578).

Almost surely, 2^43205253011 is an apocalyptic number.

43205253011 is a deficient number, since it is larger than the sum of its proper divisors (520545301).

43205253011 is an equidigital number, since it uses as much as digits as its factorization.

43205253011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520545300.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 43205253011 in words is "forty-three billion, two hundred five million, two hundred fifty-three thousand, eleven".