201671338511 has 2 divisors, whose sum is σ = 201671338512. Its totient is φ = 201671338510.

The previous prime is 201671338493. The next prime is 201671338553. The reversal of 201671338511 is 115833176102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201671338511 - 2⁶ = 201671338447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201671338571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100835669255 + 100835669256.

It is an arithmetic number, because the mean of its divisors is an integer number (100835669256).

Almost surely, 2^201671338511 is an apocalyptic number.

201671338511 is a deficient number, since it is larger than the sum of its proper divisors (1).

201671338511 is an equidigital number, since it uses as much as digits as its factorization.

201671338511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 201671338511 in words is "two hundred one billion, six hundred seventy-one million, three hundred thirty-eight thousand, five hundred eleven".