201024040121 has 8 divisors (see below), whose sum is σ = 203454345024. Its totient is φ = 198593933680.

The previous prime is 201024040099. The next prime is 201024040159. The reversal of 201024040121 is 121040420102.

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-201024040121 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 201024040121.

It is not an unprimeable number, because it can be changed into a prime (201024040181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3591611 + ... + 3647151.

It is an arithmetic number, because the mean of its divisors is an integer number (25431793128).

Almost surely, 2^201024040121 is an apocalyptic number.

It is an amenable number.

201024040121 is a deficient number, since it is larger than the sum of its proper divisors (2430304903).

201024040121 is an equidigital number, since it uses as much as digits as its factorization.

201024040121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99231.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201024040121 its reverse (121040420102), we get a palindrome (322064460223).

The spelling of 201024040121 in words is "two hundred one billion, twenty-four million, forty thousand, one hundred twenty-one".