201101430421 has 4 divisors (see below), whose sum is σ = 204398175244. Its totient is φ = 197804685600.

The previous prime is 201101430379. The next prime is 201101430443. The reversal of 201101430421 is 124034101102.

201101430421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64135562500 + 136965867921 = 253250^2 + 370089^2 .

It is a cyclic number.

It is not a de Polignac number, because 201101430421 - 2¹⁹ = 201100906133 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 (201101430721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1648372320 + ... + 1648372441.

It is an arithmetic number, because the mean of its divisors is an integer number (51099543811).

Almost surely, 2^201101430421 is an apocalyptic number.

It is an amenable number.

201101430421 is a deficient number, since it is larger than the sum of its proper divisors (3296744823).

201101430421 is an equidigital number, since it uses as much as digits as its factorization.

201101430421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296744822.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 201101430421 its reverse (124034101102), we get a palindrome (325135531523).

The spelling of 201101430421 in words is "two hundred one billion, one hundred one million, four hundred thirty thousand, four hundred twenty-one".