123340533287 has 2 divisors, whose sum is σ = 123340533288. Its totient is φ = 123340533286.

The previous prime is 123340533271. The next prime is 123340533307. The reversal of 123340533287 is 782335043321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123340533287 - 2⁴ = 123340533271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123340533257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61670266643 + 61670266644.

It is an arithmetic number, because the mean of its divisors is an integer number (61670266644).

Almost surely, 2^123340533287 is an apocalyptic number.

123340533287 is a deficient number, since it is larger than the sum of its proper divisors (1).

123340533287 is an equidigital number, since it uses as much as digits as its factorization.

123340533287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 123340533287 in words is "one hundred twenty-three billion, three hundred forty million, five hundred thirty-three thousand, two hundred eighty-seven".