201021410129 has 2 divisors, whose sum is σ = 201021410130. Its totient is φ = 201021410128.

The previous prime is 201021410101. The next prime is 201021410197. The reversal of 201021410129 is 921014120102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173622222400 + 27399187729 = 416680^2 + 165527^2 .

It is a cyclic number.

It is not a de Polignac number, because 201021410129 - 2²⁸ = 200752974673 is a prime.

It is not a weakly prime, because it can be changed into another prime (201021410329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510705064 + 100510705065.

It is an arithmetic number, because the mean of its divisors is an integer number (100510705065).

Almost surely, 2^201021410129 is an apocalyptic number.

It is an amenable number.

201021410129 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021410129 is an equidigital number, since it uses as much as digits as its factorization.

201021410129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 201021410129 in words is "two hundred one billion, twenty-one million, four hundred ten thousand, one hundred twenty-nine".