201002331077 has 2 divisors, whose sum is σ = 201002331078. Its totient is φ = 201002331076.

The previous prime is 201002331011. The next prime is 201002331109. The reversal of 201002331077 is 770133200102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165507394276 + 35494936801 = 406826^2 + 188401^2 .

It is a cyclic number.

It is not a de Polignac number, because 201002331077 - 2¹⁸ = 201002068933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201002331977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100501165538 + 100501165539.

It is an arithmetic number, because the mean of its divisors is an integer number (100501165539).

Almost surely, 2^201002331077 is an apocalyptic number.

It is an amenable number.

201002331077 is a deficient number, since it is larger than the sum of its proper divisors (1).

201002331077 is an equidigital number, since it uses as much as digits as its factorization.

201002331077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

Adding to 201002331077 its reverse (770133200102), we get a palindrome (971135531179).

The spelling of 201002331077 in words is "two hundred one billion, two million, three hundred thirty-one thousand, seventy-seven".