203401116 has 18 divisors (see below), whose sum is σ = 514152912. Its totient is φ = 67800360.

The previous prime is 203401097. The next prime is 203401139. The reversal of 203401116 is 611104302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2824980 + ... + 2825051.

Almost surely, 2^203401116 is an apocalyptic number.

It is an amenable number.

203401116 is an abundant number, since it is smaller than the sum of its proper divisors (310751796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203401116 is a wasteful number, since it uses less digits than its factorization.

203401116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650041 (or 5650036 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 203401116 is about 14261.8763141460. The cubic root of 203401116 is about 588.0999066669.

Adding to 203401116 its reverse (611104302), we get a palindrome (814505418).

The spelling of 203401116 in words is "two hundred three million, four hundred one thousand, one hundred sixteen".