2043243254011 has 6 divisors (see below), whose sum is σ = 2091865594020. Its totient is φ = 1995725967228.

The previous prime is 2043243253973. The next prime is 2043243254021. The reversal of 2043243254011 is 1104523423402.

It is not a de Polignac number, because 2043243254011 - 2²⁹ = 2042706383099 is a prime.

It is a super-2 number, since 2×2043243254011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043243254021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552524721 + ... + 552528418.

It is an arithmetic number, because the mean of its divisors is an integer number (348644265670).

Almost surely, 2^{2043243254011} is an apocalyptic number.

2043243254011 is a deficient number, since it is larger than the sum of its proper divisors (48622340009).

2043243254011 is an equidigital number, since it uses as much as digits as its factorization.

2043243254011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105053225 (or 1105053182 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 2043243254011 its reverse (1104523423402), we get a palindrome (3147766677413).

The spelling of 2043243254011 in words is "two trillion, forty-three billion, two hundred forty-three million, two hundred fifty-four thousand, eleven".