123347989087 has 2 divisors, whose sum is σ = 123347989088. Its totient is φ = 123347989086.

The previous prime is 123347989049. The next prime is 123347989109. The reversal of 123347989087 is 780989743321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123347989087 - 2²³ = 123339600479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123347986087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61673994543 + 61673994544.

It is an arithmetic number, because the mean of its divisors is an integer number (61673994544).

Almost surely, 2^123347989087 is an apocalyptic number.

123347989087 is a deficient number, since it is larger than the sum of its proper divisors (1).

123347989087 is an equidigital number, since it uses as much as digits as its factorization.

123347989087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 123347989087 in words is "one hundred twenty-three billion, three hundred forty-seven million, nine hundred eighty-nine thousand, eighty-seven".