204220321243031 has 8 divisors (see below), whose sum is σ = 204427146615120. Its totient is φ = 204013506180352.

The previous prime is 204220321243019. The next prime is 204220321243121. The reversal of 204220321243031 is 130342123022402.

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

It is a cyclic number.

It is not a de Polignac number, because 204220321243031 - 2⁶ = 204220321242967 is a prime.

It is a super-2 number, since 2×204220321243031² (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 = 204220321242985 and 204220321243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204220321243231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37374311 + ... + 42488583.

It is an arithmetic number, because the mean of its divisors is an integer number (25553393326890).

Almost surely, 2^{204220321243031} is an apocalyptic number.

204220321243031 is a deficient number, since it is larger than the sum of its proper divisors (206825372089).

204220321243031 is a wasteful number, since it uses less digits than its factorization.

204220321243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154705.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 204220321243031 its reverse (130342123022402), we get a palindrome (334562444265433).

The spelling of 204220321243031 in words is "two hundred four trillion, two hundred twenty billion, three hundred twenty-one million, two hundred forty-three thousand, thirty-one".