123367531789 has 2 divisors, whose sum is σ = 123367531790. Its totient is φ = 123367531788.

The previous prime is 123367531741. The next prime is 123367531801. The reversal of 123367531789 is 987135763321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89675093764 + 33692438025 = 299458^2 + 183555^2 .

It is a cyclic number.

It is not a de Polignac number, because 123367531789 - 2¹³ = 123367523597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123367531589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61683765894 + 61683765895.

It is an arithmetic number, because the mean of its divisors is an integer number (61683765895).

Almost surely, 2^123367531789 is an apocalyptic number.

It is an amenable number.

123367531789 is a deficient number, since it is larger than the sum of its proper divisors (1).

123367531789 is an equidigital number, since it uses as much as digits as its factorization.

123367531789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 55.

The spelling of 123367531789 in words is "one hundred twenty-three billion, three hundred sixty-seven million, five hundred thirty-one thousand, seven hundred eighty-nine".