123238245819 has 8 divisors (see below), whose sum is σ = 176957481232. Its totient is φ = 75838920480.

The previous prime is 123238245737. The next prime is 123238245841. The reversal of 123238245819 is 918542832321.

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

It is not a de Polignac number, because 123238245819 - 2⁹ = 123238245307 is a prime.

It is a super-2 number, since 2×123238245819² (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 (123238245019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579977472 + ... + 1579977549.

It is an arithmetic number, because the mean of its divisors is an integer number (22119685154).

Almost surely, 2^123238245819 is an apocalyptic number.

123238245819 is a deficient number, since it is larger than the sum of its proper divisors (53719235413).

123238245819 is a wasteful number, since it uses less digits than its factorization.

123238245819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159955037.

The product of its digits is 829440, while the sum is 48.

The spelling of 123238245819 in words is "one hundred twenty-three billion, two hundred thirty-eight million, two hundred forty-five thousand, eight hundred nineteen".