203413243243 has 16 divisors (see below), whose sum is σ = 241309414080. Its totient is φ = 167767399296.

The previous prime is 203413243223. The next prime is 203413243259. The reversal of 203413243243 is 342342314302.

It is a happy number.

It is not a de Polignac number, because 203413243243 - 2²⁹ = 202876372331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203413243223) 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, 1650480 + ... + 1769437.

It is an arithmetic number, because the mean of its divisors is an integer number (15081838380).

Almost surely, 2^203413243243 is an apocalyptic number.

203413243243 is a deficient number, since it is larger than the sum of its proper divisors (37896170837).

203413243243 is a wasteful number, since it uses less digits than its factorization.

203413243243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420246.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 203413243243 its reverse (342342314302), we get a palindrome (545755557545).

The spelling of 203413243243 in words is "two hundred three billion, four hundred thirteen million, two hundred forty-three thousand, two hundred forty-three".