123064868019 has 4 divisors (see below), whose sum is σ = 164086490696. Its totient is φ = 82043245344.

The previous prime is 123064867997. The next prime is 123064868041. The reversal of 123064868019 is 910868460321.

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

It is an interprime number because it is at equal distance from previous prime (123064867997) and next prime (123064868041).

It is not a de Polignac number, because 123064868019 - 2⁵ = 123064867987 is a prime.

It is a super-2 number, since 2×123064868019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123064868119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20510811334 + ... + 20510811339.

It is an arithmetic number, because the mean of its divisors is an integer number (41021622674).

Almost surely, 2^123064868019 is an apocalyptic number.

123064868019 is a deficient number, since it is larger than the sum of its proper divisors (41021622677).

123064868019 is an equidigital number, since it uses as much as digits as its factorization.

123064868019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41021622676.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 123064868019 in words is "one hundred twenty-three billion, sixty-four million, eight hundred sixty-eight thousand, nineteen".