123069331687 has 2 divisors, whose sum is σ = 123069331688. Its totient is φ = 123069331686.

The previous prime is 123069331603. The next prime is 123069331691. The reversal of 123069331687 is 786133960321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123069331687 - 2⁷ = 123069331559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123069331687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123069331387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61534665843 + 61534665844.

It is an arithmetic number, because the mean of its divisors is an integer number (61534665844).

Almost surely, 2^123069331687 is an apocalyptic number.

123069331687 is a deficient number, since it is larger than the sum of its proper divisors (1).

123069331687 is an equidigital number, since it uses as much as digits as its factorization.

123069331687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 123069331687 in words is "one hundred twenty-three billion, sixty-nine million, three hundred thirty-one thousand, six hundred eighty-seven".