201203121043 has 8 divisors (see below), whose sum is σ = 205580296512. Its totient is φ = 196829956416.

The previous prime is 201203121017. The next prime is 201203121047. The reversal of 201203121043 is 340121302102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201203121043 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 201203121043.

It is not an unprimeable number, because it can be changed into a prime (201203121047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901180 + ... + 1102057.

It is an arithmetic number, because the mean of its divisors is an integer number (25697537064).

Almost surely, 2^201203121043 is an apocalyptic number.

201203121043 is a deficient number, since it is larger than the sum of its proper divisors (4377175469).

201203121043 is a wasteful number, since it uses less digits than its factorization.

201203121043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005421.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201203121043 its reverse (340121302102), we get a palindrome (541324423145).

The spelling of 201203121043 in words is "two hundred one billion, two hundred three million, one hundred twenty-one thousand, forty-three".