203344413021 has 12 divisors (see below), whose sum is σ = 297258500448. Its totient is φ = 133929653064.

The previous prime is 203344412939. The next prime is 203344413059. The reversal of 203344413021 is 120314443302.

203344413021 is a `hidden beast` number, since 20 + 334 + 4 + 4 + 1 + 302 + 1 = 666.

It is not a de Polignac number, because 203344413021 - 2¹³ = 203344404829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203344413221) 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, 136106625 + ... + 136108118.

It is an arithmetic number, because the mean of its divisors is an integer number (24771541704).

Almost surely, 2^203344413021 is an apocalyptic number.

It is an amenable number.

203344413021 is a deficient number, since it is larger than the sum of its proper divisors (93914087427).

203344413021 is a wasteful number, since it uses less digits than its factorization.

203344413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272214832 (or 272214829 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 203344413021 its reverse (120314443302), we get a palindrome (323658856323).

The spelling of 203344413021 in words is "two hundred three billion, three hundred forty-four million, four hundred thirteen thousand, twenty-one".