123013321019 has 16 divisors (see below), whose sum is σ = 131274833760. Its totient is φ = 114866872320.

The previous prime is 123013320977. The next prime is 123013321073. The reversal of 123013321019 is 910123310321.

It is a cyclic number.

It is not a de Polignac number, because 123013321019 - 2²⁰ = 123012272443 is a prime.

It is a super-2 number, since 2×123013321019² (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 (123013321819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3652979 + ... + 3686499.

It is an arithmetic number, because the mean of its divisors is an integer number (8204677110).

Almost surely, 2^123013321019 is an apocalyptic number.

123013321019 is a deficient number, since it is larger than the sum of its proper divisors (8261512741).

123013321019 is a wasteful number, since it uses less digits than its factorization.

123013321019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35230.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 123013321019 in words is "one hundred twenty-three billion, thirteen million, three hundred twenty-one thousand, nineteen".