203880431 has 4 divisors (see below), whose sum is σ = 214611000. Its totient is φ = 193149864.

The previous prime is 203880421. The next prime is 203880433. The reversal of 203880431 is 134088302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203880431 - 2⁶ = 203880367 is a prime.

It is a super-2 number, since 2×203880431² = 83134460289491522, 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 = 203880394 and 203880403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203880433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5365256 + ... + 5365293.

It is an arithmetic number, because the mean of its divisors is an integer number (53652750).

Almost surely, 2^203880431 is an apocalyptic number.

203880431 is a deficient number, since it is larger than the sum of its proper divisors (10730569).

203880431 is a wasteful number, since it uses less digits than its factorization.

203880431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730568.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 203880431 is about 14278.6704913308. The cubic root of 203880431 is about 588.5614970142.

The spelling of 203880431 in words is "two hundred three million, eight hundred eighty thousand, four hundred thirty-one".