201320233487 has 2 divisors, whose sum is σ = 201320233488. Its totient is φ = 201320233486.

The previous prime is 201320233483. The next prime is 201320233501. The reversal of 201320233487 is 784332023102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201320233487 - 2² = 201320233483 is a prime.

It is a super-2 number, since 2×201320233487² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201320233483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660116743 + 100660116744.

It is an arithmetic number, because the mean of its divisors is an integer number (100660116744).

Almost surely, 2^201320233487 is an apocalyptic number.

201320233487 is a deficient number, since it is larger than the sum of its proper divisors (1).

201320233487 is an equidigital number, since it uses as much as digits as its factorization.

201320233487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 35.

Adding to 201320233487 its reverse (784332023102), we get a palindrome (985652256589).

The spelling of 201320233487 in words is "two hundred one billion, three hundred twenty million, two hundred thirty-three thousand, four hundred eighty-seven".