204423623005105 has 32 divisors (see below), whose sum is σ = 280520041697280. Its totient is φ = 140092398512640.

The previous prime is 204423623005103. The next prime is 204423623005127. The reversal of 204423623005105 is 501500326324402.

It is not a de Polignac number, because 204423623005105 - 2¹ = 204423623005103 is a prime.

It is a super-2 number, since 2×204423623005105² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204423623005103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451367920 + ... + 451820590.

It is an arithmetic number, because the mean of its divisors is an integer number (8766251303040).

Almost surely, 2^{204423623005105} is an apocalyptic number.

It is an amenable number.

204423623005105 is a deficient number, since it is larger than the sum of its proper divisors (76096418692175).

204423623005105 is a wasteful number, since it uses less digits than its factorization.

204423623005105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460369.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 204423623005105 its reverse (501500326324402), we get a palindrome (705923949329507).

The spelling of 204423623005105 in words is "two hundred four trillion, four hundred twenty-three billion, six hundred twenty-three million, five thousand, one hundred five".