204002310077 has 2 divisors, whose sum is σ = 204002310078. Its totient is φ = 204002310076.

The previous prime is 204002310041. The next prime is 204002310137. The reversal of 204002310077 is 770013200402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202725963001 + 1276347076 = 450251^2 + 35726^2 .

It is a cyclic number.

It is not a de Polignac number, because 204002310077 - 2⁶ = 204002310013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204002310977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102001155038 + 102001155039.

It is an arithmetic number, because the mean of its divisors is an integer number (102001155039).

Almost surely, 2^204002310077 is an apocalyptic number.

It is an amenable number.

204002310077 is a deficient number, since it is larger than the sum of its proper divisors (1).

204002310077 is an equidigital number, since it uses as much as digits as its factorization.

204002310077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

Adding to 204002310077 its reverse (770013200402), we get a palindrome (974015510479).

The spelling of 204002310077 in words is "two hundred four billion, two million, three hundred ten thousand, seventy-seven".