201403411021 has 4 divisors (see below), whose sum is σ = 206846746492. Its totient is φ = 195960075552.

The previous prime is 201403410991. The next prime is 201403411049. The reversal of 201403411021 is 120114304102.

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 146183110921 + 55220300100 = 382339^2 + 234990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201403411021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201403411021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201403441021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2721667680 + ... + 2721667753.

It is an arithmetic number, because the mean of its divisors is an integer number (51711686623).

Almost surely, 2^201403411021 is an apocalyptic number.

It is an amenable number.

201403411021 is a deficient number, since it is larger than the sum of its proper divisors (5443335471).

201403411021 is an equidigital number, since it uses as much as digits as its factorization.

201403411021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443335470.

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

Adding to 201403411021 its reverse (120114304102), we get a palindrome (321517715123).

The spelling of 201403411021 in words is "two hundred one billion, four hundred three million, four hundred eleven thousand, twenty-one".