201242103043 has 4 divisors (see below), whose sum is σ = 201258668800. Its totient is φ = 201225537288.

The previous prime is 201242102977. The next prime is 201242103121. The reversal of 201242103043 is 340301242102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340301242102 = 2 ⋅170150621051.

It is a cyclic number.

It is not a de Polignac number, because 201242103043 - 2⁹ = 201242102531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201242103443) 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, 8264643 + ... + 8288956.

It is an arithmetic number, because the mean of its divisors is an integer number (50314667200).

Almost surely, 2^201242103043 is an apocalyptic number.

201242103043 is a deficient number, since it is larger than the sum of its proper divisors (16565757).

201242103043 is a wasteful number, since it uses less digits than its factorization.

201242103043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16565756.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 201242103043 its reverse (340301242102), we get a palindrome (541543345145).

The spelling of 201242103043 in words is "two hundred one billion, two hundred forty-two million, one hundred three thousand, forty-three".