203413132243 has 4 divisors (see below), whose sum is σ = 204778321200. Its totient is φ = 202047943288.

The previous prime is 203413132141. The next prime is 203413132249. The reversal of 203413132243 is 342231314302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203413132243 is a prime.

It is a super-2 number, since 2×203413132243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203413132249) 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, 682594255 + ... + 682594552.

It is an arithmetic number, because the mean of its divisors is an integer number (51194580300).

Almost surely, 2^203413132243 is an apocalyptic number.

203413132243 is a deficient number, since it is larger than the sum of its proper divisors (1365188957).

203413132243 is a wasteful number, since it uses less digits than its factorization.

203413132243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365188956.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 203413132243 its reverse (342231314302), we get a palindrome (545644446545).

The spelling of 203413132243 in words is "two hundred three billion, four hundred thirteen million, one hundred thirty-two thousand, two hundred forty-three".