204021440453031 has 8 divisors (see below), whose sum is σ = 272071568586480. Its totient is φ = 135992802977472.

The previous prime is 204021440452993. The next prime is 204021440453053. The reversal of 204021440453031 is 130354044120402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204021440453031 - 2⁷ = 204021440452903 is a prime.

It is a super-2 number, since 2×204021440453031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204021440452983 and 204021440453001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204021440453731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5372642320 + ... + 5372680293.

It is an arithmetic number, because the mean of its divisors is an integer number (34008946073310).

Almost surely, 2^{204021440453031} is an apocalyptic number.

204021440453031 is a deficient number, since it is larger than the sum of its proper divisors (68050128133449).

204021440453031 is a wasteful number, since it uses less digits than its factorization.

204021440453031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10745328945.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 204021440453031 its reverse (130354044120402), we get a palindrome (334375484573433).

The spelling of 204021440453031 in words is "two hundred four trillion, twenty-one billion, four hundred forty million, four hundred fifty-three thousand, thirty-one".