123872381245 has 8 divisors (see below), whose sum is σ = 148650780384. Its totient is φ = 99095289744.

The previous prime is 123872381233. The next prime is 123872381251. The reversal of 123872381245 is 542183278321.

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

It is a cyclic number.

It is not a de Polignac number, because 123872381245 - 2⁷ = 123872381117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123872381195 and 123872381204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104779 + ... + 508648.

It is an arithmetic number, because the mean of its divisors is an integer number (18581347548).

Almost surely, 2^123872381245 is an apocalyptic number.

It is an amenable number.

123872381245 is a deficient number, since it is larger than the sum of its proper divisors (24778399139).

123872381245 is an equidigital number, since it uses as much as digits as its factorization.

123872381245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653819.

The product of its digits is 645120, while the sum is 46.

The spelling of 123872381245 in words is "one hundred twenty-three billion, eight hundred seventy-two million, three hundred eighty-one thousand, two hundred forty-five".