201044310421 has 2 divisors, whose sum is σ = 201044310422. Its totient is φ = 201044310420.

The previous prime is 201044310409. The next prime is 201044310451. The reversal of 201044310421 is 124013440102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199531956100 + 1512354321 = 446690^2 + 38889^2 .

It is a cyclic number.

It is not a de Polignac number, because 201044310421 - 2⁷ = 201044310293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201044310392 and 201044310401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201044310451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100522155210 + 100522155211.

It is an arithmetic number, because the mean of its divisors is an integer number (100522155211).

Almost surely, 2^201044310421 is an apocalyptic number.

It is an amenable number.

201044310421 is a deficient number, since it is larger than the sum of its proper divisors (1).

201044310421 is an equidigital number, since it uses as much as digits as its factorization.

201044310421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201044310421 its reverse (124013440102), we get a palindrome (325057750523).

The spelling of 201044310421 in words is "two hundred one billion, forty-four million, three hundred ten thousand, four hundred twenty-one".