203352421 has 8 divisors (see below), whose sum is σ = 214250400. Its totient is φ = 192474000.

The previous prime is 203352403. The next prime is 203352469. The reversal of 203352421 is 124253302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203352421 is a prime.

It is a super-2 number, since 2×203352421² = 82704414253122482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203352392 and 203352401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203392421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19671 + ... + 28171.

It is an arithmetic number, because the mean of its divisors is an integer number (26781300).

Almost surely, 2^203352421 is an apocalyptic number.

It is an amenable number.

203352421 is a deficient number, since it is larger than the sum of its proper divisors (10897979).

203352421 is a wasteful number, since it uses less digits than its factorization.

203352421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9779.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 203352421 is about 14260.1690382688. The cubic root of 203352421 is about 588.0529718038.

The spelling of 203352421 in words is "two hundred three million, three hundred fifty-two thousand, four hundred twenty-one".