234543421061111 has 4 divisors (see below), whose sum is σ = 235758671947632. Its totient is φ = 233328170174592.

The previous prime is 234543421061107. The next prime is 234543421061129. The reversal of 234543421061111 is 111160124345432.

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 234543421061111 - 2² = 234543421061107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234543421066111) 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, 607625442971 + ... + 607625443356.

It is an arithmetic number, because the mean of its divisors is an integer number (58939667986908).

Almost surely, 2^{234543421061111} is an apocalyptic number.

234543421061111 is a deficient number, since it is larger than the sum of its proper divisors (1215250886521).

234543421061111 is a wasteful number, since it uses less digits than its factorization.

234543421061111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215250886520.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 234543421061111 in words is "two hundred thirty-four trillion, five hundred forty-three billion, four hundred twenty-one million, sixty-one thousand, one hundred eleven".