204040143144231 has 4 divisors (see below), whose sum is σ = 272053524192312. Its totient is φ = 136026762096152.

The previous prime is 204040143144169. The next prime is 204040143144281. The reversal of 204040143144231 is 132441341040402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 204040143144231 - 2³⁰ = 204039069402407 is a prime.

It is a super-2 number, since 2×204040143144231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204040143144192 and 204040143144201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204040143144281) 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, 34006690524036 + ... + 34006690524041.

It is an arithmetic number, because the mean of its divisors is an integer number (68013381048078).

Almost surely, 2^{204040143144231} is an apocalyptic number.

204040143144231 is a deficient number, since it is larger than the sum of its proper divisors (68013381048081).

204040143144231 is an equidigital number, since it uses as much as digits as its factorization.

204040143144231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68013381048080.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 204040143144231 its reverse (132441341040402), we get a palindrome (336481484184633).

The spelling of 204040143144231 in words is "two hundred four trillion, forty billion, one hundred forty-three million, one hundred forty-four thousand, two hundred thirty-one".