204103201203431 has 16 divisors (see below), whose sum is σ = 216817920000000. Its totient is φ = 191585749589856.

The previous prime is 204103201203301. The next prime is 204103201203437. The reversal of 204103201203431 is 134302102301402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204103201203431 is a prime.

It is a super-2 number, since 2×204103201203431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204103201203431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204103201203437) 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, 600418010 + ... + 600757848.

It is an arithmetic number, because the mean of its divisors is an integer number (13551120000000).

Almost surely, 2^{204103201203431} is an apocalyptic number.

204103201203431 is a deficient number, since it is larger than the sum of its proper divisors (12714718796569).

204103201203431 is a wasteful number, since it uses less digits than its factorization.

204103201203431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629966.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 204103201203431 its reverse (134302102301402), we get a palindrome (338405303504833).

The spelling of 204103201203431 in words is "two hundred four trillion, one hundred three billion, two hundred one million, two hundred three thousand, four hundred thirty-one".