204001242231 has 4 divisors (see below), whose sum is σ = 272001656312. Its totient is φ = 136000828152.

The previous prime is 204001242229. The next prime is 204001242233. The reversal of 204001242231 is 132242100402.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (204001242229) and next prime (204001242233).

It is not a de Polignac number, because 204001242231 - 2¹ = 204001242229 is a prime.

It is a super-2 number, since 2×204001242231² (a number of 23 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 = 204001242198 and 204001242207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204001242233) 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, 34000207036 + ... + 34000207041.

It is an arithmetic number, because the mean of its divisors is an integer number (68000414078).

Almost surely, 2^204001242231 is an apocalyptic number.

204001242231 is a deficient number, since it is larger than the sum of its proper divisors (68000414081).

204001242231 is an equidigital number, since it uses as much as digits as its factorization.

204001242231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68000414080.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 204001242231 its reverse (132242100402), we get a palindrome (336243342633).

The spelling of 204001242231 in words is "two hundred four billion, one million, two hundred forty-two thousand, two hundred thirty-one".