204034293121 has 6 divisors (see below), whose sum is σ = 210828360066. Its totient is φ = 197452540800.

The previous prime is 204034293053. The next prime is 204034293161. The reversal of 204034293121 is 121392430402.

It can be written as a sum of positive squares in only one way, i.e., 123471418225 + 80562874896 = 351385^2 + 283836^2 .

It is not a de Polignac number, because 204034293121 - 2⁷ = 204034292993 is a prime.

It is a super-2 number, since 2×204034293121² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204034293161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106156320 + ... + 106158241.

It is an arithmetic number, because the mean of its divisors is an integer number (35138060011).

Almost surely, 2^204034293121 is an apocalyptic number.

It is an amenable number.

204034293121 is a deficient number, since it is larger than the sum of its proper divisors (6794066945).

204034293121 is an equidigital number, since it uses as much as digits as its factorization.

204034293121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212314623 (or 212314592 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 204034293121 in words is "two hundred four billion, thirty-four million, two hundred ninety-three thousand, one hundred twenty-one".