203230443541 has 16 divisors (see below), whose sum is σ = 222629688000. Its totient is φ = 184659810048.

The previous prime is 203230443539. The next prime is 203230443553. The reversal of 203230443541 is 145344032302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 203230443541 - 2¹ = 203230443539 is a prime.

It is a super-2 number, since 2×203230443541² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203230443511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6276010 + ... + 6308308.

It is an arithmetic number, because the mean of its divisors is an integer number (13914355500).

Almost surely, 2^203230443541 is an apocalyptic number.

It is an amenable number.

203230443541 is a deficient number, since it is larger than the sum of its proper divisors (19399244459).

203230443541 is a wasteful number, since it uses less digits than its factorization.

203230443541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45108.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 203230443541 its reverse (145344032302), we get a palindrome (348574475843).

The spelling of 203230443541 in words is "two hundred three billion, two hundred thirty million, four hundred forty-three thousand, five hundred forty-one".