43740111101 has 4 divisors (see below), whose sum is σ = 43741162272. Its totient is φ = 43739059932.

The previous prime is 43740111073. The next prime is 43740111127. The reversal of 43740111101 is 10111104734.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10111104734 = 2 ⋅5055552367.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43740111101 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 (43740111131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460481 + ... + 547286.

It is an arithmetic number, because the mean of its divisors is an integer number (10935290568).

Almost surely, 2^43740111101 is an apocalyptic number.

It is an amenable number.

43740111101 is a deficient number, since it is larger than the sum of its proper divisors (1051171).

43740111101 is a wasteful number, since it uses less digits than its factorization.

43740111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051170.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 43740111101 its reverse (10111104734), we get a palindrome (53851215835).

The spelling of 43740111101 in words is "forty-three billion, seven hundred forty million, one hundred eleven thousand, one hundred one".