203413043144 has 8 divisors (see below), whose sum is σ = 381399455910. Its totient is φ = 101706521568.

The previous prime is 203413043087. The next prime is 203413043147. The reversal of 203413043144 is 441340314302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 144504899044 + 58908144100 = 380138^2 + 242710^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×203413043144² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203413043147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12713315189 + ... + 12713315204.

Almost surely, 2^203413043144 is an apocalyptic number.

It is an amenable number.

203413043144 is a deficient number, since it is larger than the sum of its proper divisors (177986412766).

203413043144 is a wasteful number, since it uses less digits than its factorization.

203413043144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25426630399 (or 25426630395 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 203413043144 its reverse (441340314302), we get a palindrome (644753357446).

The spelling of 203413043144 in words is "two hundred three billion, four hundred thirteen million, forty-three thousand, one hundred forty-four".