123215320419 has 8 divisors (see below), whose sum is σ = 164502980112. Its totient is φ = 82035603840.

The previous prime is 123215320351. The next prime is 123215320447. The reversal of 123215320419 is 914023512321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123215320419 - 2²¹ = 123213223267 is a prime.

It is a super-2 number, since 2×123215320419² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123215320419.

It is not an unprimeable number, because it can be changed into a prime (123215320499) 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 7 ways as a sum of consecutive naturals, for example, 26983114 + ... + 26987679.

It is an arithmetic number, because the mean of its divisors is an integer number (20562872514).

Almost surely, 2^123215320419 is an apocalyptic number.

123215320419 is a deficient number, since it is larger than the sum of its proper divisors (41287659693).

123215320419 is an equidigital number, since it uses as much as digits as its factorization.

123215320419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53971557.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 123215320419 in words is "one hundred twenty-three billion, two hundred fifteen million, three hundred twenty thousand, four hundred nineteen".