203443111044 has 36 divisors (see below), whose sum is σ = 518012702844. Its totient is φ = 67319373312.

The previous prime is 203443111013. The next prime is 203443111103. The reversal of 203443111044 is 440111344302.

203443111044 is a `hidden beast` number, since 2 + 0 + 344 + 311 + 1 + 0 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 152474630400 + 50968480644 = 390480^2 + 225762^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×203443111044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203443110999 and 203443111017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20619877 + ... + 20629740.

Almost surely, 2^203443111044 is an apocalyptic number.

It is an amenable number.

203443111044 is an abundant number, since it is smaller than the sum of its proper divisors (314569591800).

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

203443111044 is a wasteful number, since it uses less digits than its factorization.

203443111044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41249764 (or 41249759 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 203443111044 its reverse (440111344302), we get a palindrome (643554455346).

The spelling of 203443111044 in words is "two hundred three billion, four hundred forty-three million, one hundred eleven thousand, forty-four".