204100201121243 has 8 divisors (see below), whose sum is σ = 233360265261312. Its totient is φ = 174865860119016.

The previous prime is 204100201121191. The next prime is 204100201121249. The reversal of 204100201121243 is 342121102001402.

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 204100201121243 - 2¹² = 204100201117147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204100201121249) 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, 6430767455 + ... + 6430799192.

It is an arithmetic number, because the mean of its divisors is an integer number (29170033157664).

Almost surely, 2^{204100201121243} is an apocalyptic number.

204100201121243 is a deficient number, since it is larger than the sum of its proper divisors (29260064140069).

204100201121243 is a wasteful number, since it uses less digits than its factorization.

204100201121243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12861568921.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 204100201121243 its reverse (342121102001402), we get a palindrome (546221303122645).

The spelling of 204100201121243 in words is "two hundred four trillion, one hundred billion, two hundred one million, one hundred twenty-one thousand, two hundred forty-three".