123338807771 has 4 divisors (see below), whose sum is σ = 123348997200. Its totient is φ = 123328618344.

The previous prime is 123338807741. The next prime is 123338807777. The reversal of 123338807771 is 177708833321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123338807771 - 2³⁰ = 122265065947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123338807777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5076536 + ... + 5100773.

It is an arithmetic number, because the mean of its divisors is an integer number (30837249300).

Almost surely, 2^123338807771 is an apocalyptic number.

123338807771 is a deficient number, since it is larger than the sum of its proper divisors (10189429).

123338807771 is a wasteful number, since it uses less digits than its factorization.

123338807771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10189428.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 123338807771 in words is "one hundred twenty-three billion, three hundred thirty-eight million, eight hundred seven thousand, seven hundred seventy-one".