101442043 has 4 divisors (see below), whose sum is σ = 107409240. Its totient is φ = 95474848.

The previous prime is 101442037. The next prime is 101442059. The reversal of 101442043 is 340244101.

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-101442043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101442043.

It is not an unprimeable number, because it can be changed into a prime (101442023) 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, 2983573 + ... + 2983606.

It is an arithmetic number, because the mean of its divisors is an integer number (26852310).

Almost surely, 2^101442043 is an apocalyptic number.

101442043 is a deficient number, since it is larger than the sum of its proper divisors (5967197).

101442043 is an equidigital number, since it uses as much as digits as its factorization.

101442043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967196.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 101442043 is about 10071.8440714697. The cubic root of 101442043 is about 466.3793674374.

Adding to 101442043 its reverse (340244101), we get a palindrome (441686144).

The spelling of 101442043 in words is "one hundred one million, four hundred forty-two thousand, forty-three".