201421031205 has 8 divisors (see below), whose sum is σ = 322273649952. Its totient is φ = 107424549968.

The previous prime is 201421031177. The next prime is 201421031209. The reversal of 201421031205 is 502130124102.

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

It is a cyclic number.

It is not a de Polignac number, because 201421031205 - 2⁵ = 201421031173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201421031209) 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, 6714034359 + ... + 6714034388.

It is an arithmetic number, because the mean of its divisors is an integer number (40284206244).

Almost surely, 2^201421031205 is an apocalyptic number.

It is an amenable number.

201421031205 is a deficient number, since it is larger than the sum of its proper divisors (120852618747).

201421031205 is a wasteful number, since it uses less digits than its factorization.

201421031205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13428068755.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 201421031205 its reverse (502130124102), we get a palindrome (703551155307).

The spelling of 201421031205 in words is "two hundred one billion, four hundred twenty-one million, thirty-one thousand, two hundred five".