203403442023 has 48 divisors (see below), whose sum is σ = 320563576320. Its totient is φ = 123855101568.

The previous prime is 203403442013. The next prime is 203403442043. The reversal of 203403442023 is 320244304302.

203403442023 is a `hidden beast` number, since 203 + 4 + 0 + 34 + 420 + 2 + 3 = 666.

It is not a de Polignac number, because 203403442023 - 2⁵ = 203403441991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203403442013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 349611 + ... + 727347.

It is an arithmetic number, because the mean of its divisors is an integer number (6678407840).

Almost surely, 2^203403442023 is an apocalyptic number.

203403442023 is a deficient number, since it is larger than the sum of its proper divisors (117160134297).

203403442023 is a wasteful number, since it uses less digits than its factorization.

203403442023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377876 (or 377873 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 203403442023 its reverse (320244304302), we get a palindrome (523647746325).

The spelling of 203403442023 in words is "two hundred three billion, four hundred three million, four hundred forty-two thousand, twenty-three".