203204303143031 has 4 divisors (see below), whose sum is σ = 203204331772200. Its totient is φ = 203204274513864.

The previous prime is 203204303143019. The next prime is 203204303143091. The reversal of 203204303143031 is 130341303402302.

It is a semiprime because it is the product of two primes, 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 203204303143031 - 2²² = 203204298948727 is a prime.

It is a super-2 number, since 2×203204303143031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203204303142985 and 203204303143003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203204303143091) 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, 5199800 + ... + 20819378.

It is an arithmetic number, because the mean of its divisors is an integer number (50801082943050).

Almost surely, 2^{203204303143031} is an apocalyptic number.

203204303143031 is a deficient number, since it is larger than the sum of its proper divisors (28629169).

203204303143031 is a wasteful number, since it uses less digits than its factorization.

203204303143031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28629168.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 203204303143031 its reverse (130341303402302), we get a palindrome (333545606545333).

The spelling of 203204303143031 in words is "two hundred three trillion, two hundred four billion, three hundred three million, one hundred forty-three thousand, thirty-one".