201320233187 has 2 divisors, whose sum is σ = 201320233188. Its totient is φ = 201320233186.

The previous prime is 201320233073. The next prime is 201320233211. The reversal of 201320233187 is 781332023102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201320233187 - 2²⁶ = 201253124323 is a prime.

It is not a weakly prime, because it can be changed into another prime (201320233487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660116593 + 100660116594.

It is an arithmetic number, because the mean of its divisors is an integer number (100660116594).

Almost surely, 2^201320233187 is an apocalyptic number.

201320233187 is a deficient number, since it is larger than the sum of its proper divisors (1).

201320233187 is an equidigital number, since it uses as much as digits as its factorization.

201320233187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 201320233187 its reverse (781332023102), we get a palindrome (982652256289).

The spelling of 201320233187 in words is "two hundred one billion, three hundred twenty million, two hundred thirty-three thousand, one hundred eighty-seven".