123056815107 has 8 divisors (see below), whose sum is σ = 171209481984. Its totient is φ = 78471012488.

The previous prime is 123056815081. The next prime is 123056815117. The reversal of 123056815107 is 701518650321.

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 123056815107 - 2¹⁸ = 123056552963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123056815117) 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, 891715983 + ... + 891716120.

It is an arithmetic number, because the mean of its divisors is an integer number (21401185248).

Almost surely, 2^123056815107 is an apocalyptic number.

123056815107 is a deficient number, since it is larger than the sum of its proper divisors (48152666877).

123056815107 is a wasteful number, since it uses less digits than its factorization.

123056815107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783432129.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 123056815107 in words is "one hundred twenty-three billion, fifty-six million, eight hundred fifteen thousand, one hundred seven".