204542111245411 has 4 divisors (see below), whose sum is σ = 209298904530232. Its totient is φ = 199785317960592.

The previous prime is 204542111245363. The next prime is 204542111245469. The reversal of 204542111245411 is 114542111245402.

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 204542111245411 - 2¹¹ = 204542111243363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204542111242411) 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, 2378396642346 + ... + 2378396642431.

It is an arithmetic number, because the mean of its divisors is an integer number (52324726132558).

Almost surely, 2^{204542111245411} is an apocalyptic number.

204542111245411 is a deficient number, since it is larger than the sum of its proper divisors (4756793284821).

204542111245411 is an equidigital number, since it uses as much as digits as its factorization.

204542111245411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756793284820.

The product of its (nonzero) digits is 51200, while the sum is 37.

Subtracting from 204542111245411 its reverse (114542111245402), we obtain a palindrome (90000000000009).

The spelling of 204542111245411 in words is "two hundred four trillion, five hundred forty-two billion, one hundred eleven million, two hundred forty-five thousand, four hundred eleven".