123314426645 has 4 divisors (see below), whose sum is σ = 147977311980. Its totient is φ = 98651541312.

The previous prime is 123314426579. The next prime is 123314426671. The reversal of 123314426645 is 546624413321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25234593316 + 98079833329 = 158854^2 + 313177^2 .

It is a cyclic number.

It is not a de Polignac number, because 123314426645 - 2²² = 123310232341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12331442660 + ... + 12331442669.

It is an arithmetic number, because the mean of its divisors is an integer number (36994327995).

Almost surely, 2^123314426645 is an apocalyptic number.

It is an amenable number.

123314426645 is a deficient number, since it is larger than the sum of its proper divisors (24662885335).

123314426645 is an equidigital number, since it uses as much as digits as its factorization.

123314426645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24662885334.

The product of its digits is 414720, while the sum is 41.

Adding to 123314426645 its reverse (546624413321), we get a palindrome (669938839966).

The spelling of 123314426645 in words is "one hundred twenty-three billion, three hundred fourteen million, four hundred twenty-six thousand, six hundred forty-five".