203245042541 has 4 divisors (see below), whose sum is σ = 203246198784. Its totient is φ = 203243886300.

The previous prime is 203245042513. The next prime is 203245042577. The reversal of 203245042541 is 145240542302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 203245042541 - 2⁶ = 203245042477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203245042498 and 203245042507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203245042501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253805 + ... + 686226.

It is an arithmetic number, because the mean of its divisors is an integer number (50811549696).

Almost surely, 2^203245042541 is an apocalyptic number.

It is an amenable number.

203245042541 is a deficient number, since it is larger than the sum of its proper divisors (1156243).

203245042541 is an equidigital number, since it uses as much as digits as its factorization.

203245042541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156242.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 203245042541 its reverse (145240542302), we get a palindrome (348485584843).

The spelling of 203245042541 in words is "two hundred three billion, two hundred forty-five million, forty-two thousand, five hundred forty-one".