201341023421 has 16 divisors (see below), whose sum is σ = 216832204800. Its totient is φ = 186256147968.

The previous prime is 201341023409. The next prime is 201341023531. The reversal of 201341023421 is 124320143102.

It is a cyclic number.

It is not a de Polignac number, because 201341023421 - 2¹⁰ = 201341022397 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 (201341023021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8727620 + ... + 8750658.

It is an arithmetic number, because the mean of its divisors is an integer number (13552012800).

Almost surely, 2^201341023421 is an apocalyptic number.

It is an amenable number.

201341023421 is a deficient number, since it is larger than the sum of its proper divisors (15491181379).

201341023421 is a wasteful number, since it uses less digits than its factorization.

201341023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31828.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 201341023421 its reverse (124320143102), we get a palindrome (325661166523).

The spelling of 201341023421 in words is "two hundred one billion, three hundred forty-one million, twenty-three thousand, four hundred twenty-one".