101111943 has 4 divisors (see below), whose sum is σ = 134815928. Its totient is φ = 67407960.

The previous prime is 101111917. The next prime is 101112013. The reversal of 101111943 is 349111101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349111101 = 3 ⋅116370367.

It is a de Polignac number, because none of the positive numbers 2^k-101111943 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 (101115943) 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, 16851988 + ... + 16851993.

It is an arithmetic number, because the mean of its divisors is an integer number (33703982).

Almost surely, 2^101111943 is an apocalyptic number.

101111943 is a deficient number, since it is larger than the sum of its proper divisors (33703985).

101111943 is an equidigital number, since it uses as much as digits as its factorization.

101111943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33703984.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 101111943 is about 10055.4434511860. The cubic root of 101111943 is about 465.8729399332.

The spelling of 101111943 in words is "one hundred one million, one hundred eleven thousand, nine hundred forty-three".