203344201212021 has 12 divisors (see below), whose sum is σ = 293719647087360. Its totient is φ = 135562687575720.

The previous prime is 203344201211971. The next prime is 203344201212023. The reversal of 203344201212021 is 120212102443302.

203344201212021 is a `hidden beast` number, since 2 + 0 + 3 + 3 + 4 + 420 + 1 + 212 + 0 + 21 = 666.

It is not a de Polignac number, because 203344201212021 - 2²⁷ = 203344066994293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203344201212023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2768236 + ... + 20355626.

It is an arithmetic number, because the mean of its divisors is an integer number (24476637257280).

Almost surely, 2^{203344201212021} is an apocalyptic number.

It is an amenable number.

203344201212021 is a deficient number, since it is larger than the sum of its proper divisors (90375445875339).

203344201212021 is a wasteful number, since it uses less digits than its factorization.

203344201212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18872056 (or 18872053 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 203344201212021 its reverse (120212102443302), we get a palindrome (323556303655323).

The spelling of 203344201212021 in words is "two hundred three trillion, three hundred forty-four billion, two hundred one million, two hundred twelve thousand, twenty-one".