201401400421 has 8 divisors (see below), whose sum is σ = 226323982080. Its totient is φ = 177825985392.

The previous prime is 201401400407. The next prime is 201401400443. The reversal of 201401400421 is 124004104102.

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 201401400421 - 2⁹ = 201401399909 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 (201401400121) 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, 336791341 + ... + 336791938.

It is an arithmetic number, because the mean of its divisors is an integer number (28290497760).

Almost surely, 2^201401400421 is an apocalyptic number.

It is an amenable number.

201401400421 is a deficient number, since it is larger than the sum of its proper divisors (24922581659).

201401400421 is a wasteful number, since it uses less digits than its factorization.

201401400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673583315.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201401400421 its reverse (124004104102), we get a palindrome (325405504523).

The spelling of 201401400421 in words is "two hundred one billion, four hundred one million, four hundred thousand, four hundred twenty-one".