204345016521231 has 8 divisors (see below), whose sum is σ = 272949178263984. Its totient is φ = 135985432896320.

The previous prime is 204345016521223. The next prime is 204345016521257. The reversal of 204345016521231 is 132125610543402.

204345016521231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 204345016521231 - 2³ = 204345016521223 is a prime.

It is a super-2 number, since 2×204345016521231² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204345016521231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204345016523231) 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, 61144527510 + ... + 61144530851.

It is an arithmetic number, because the mean of its divisors is an integer number (34118647282998).

Almost surely, 2^{204345016521231} is an apocalyptic number.

204345016521231 is a deficient number, since it is larger than the sum of its proper divisors (68604161742753).

204345016521231 is a wasteful number, since it uses less digits than its factorization.

204345016521231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122289058921.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 204345016521231 in words is "two hundred four trillion, three hundred forty-five billion, sixteen million, five hundred twenty-one thousand, two hundred thirty-one".