203402140201 has 4 divisors (see below), whose sum is σ = 219048458692. Its totient is φ = 187755821712.

The previous prime is 203402140177. The next prime is 203402140223. The reversal of 203402140201 is 102041204302.

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 55714881600 + 147687258601 = 236040^2 + 384301^2 .

It is a cyclic number.

It is not a de Polignac number, because 203402140201 - 2¹⁹ = 203401615913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203402140261) 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, 7823159226 + ... + 7823159251.

It is an arithmetic number, because the mean of its divisors is an integer number (54762114673).

Almost surely, 2^203402140201 is an apocalyptic number.

It is an amenable number.

203402140201 is a deficient number, since it is larger than the sum of its proper divisors (15646318491).

203402140201 is a wasteful number, since it uses less digits than its factorization.

203402140201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15646318490.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 203402140201 its reverse (102041204302), we get a palindrome (305443344503).

The spelling of 203402140201 in words is "two hundred three billion, four hundred two million, one hundred forty thousand, two hundred one".