204244030431 has 36 divisors (see below), whose sum is σ = 343217648592. Its totient is φ = 116699958144.

The previous prime is 204244030381. The next prime is 204244030499. The reversal of 204244030431 is 134030442402.

It is a happy number.

204244030431 is a `hidden beast` number, since 204 + 24 + 4 + 0 + 3 + 0 + 431 = 666.

It is not a de Polignac number, because 204244030431 - 2⁷ = 204244030303 is a prime.

It is a super-2 number, since 2×204244030431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204244030395 and 204244030404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204244030531) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8458231 + ... + 8482343.

It is an arithmetic number, because the mean of its divisors is an integer number (9533823572).

Almost surely, 2^204244030431 is an apocalyptic number.

204244030431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

204244030431 is a deficient number, since it is larger than the sum of its proper divisors (138973618161).

204244030431 is a wasteful number, since it uses less digits than its factorization.

204244030431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43340 (or 43330 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 204244030431 its reverse (134030442402), we get a palindrome (338274472833).

The spelling of 204244030431 in words is "two hundred four billion, two hundred forty-four million, thirty thousand, four hundred thirty-one".