123423822501 has 16 divisors (see below), whose sum is σ = 199137596544. Its totient is φ = 66379198464.

The previous prime is 123423822497. The next prime is 123423822527. The reversal of 123423822501 is 105228324321.

It is not a de Polignac number, because 123423822501 - 2² = 123423822497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123423822541) 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 15 ways as a sum of consecutive naturals, for example, 172862140 + ... + 172862853.

It is an arithmetic number, because the mean of its divisors is an integer number (12446099784).

Almost surely, 2^123423822501 is an apocalyptic number.

It is an amenable number.

123423822501 is a deficient number, since it is larger than the sum of its proper divisors (75713774043).

123423822501 is a wasteful number, since it uses less digits than its factorization.

123423822501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345725020.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 123423822501 in words is "one hundred twenty-three billion, four hundred twenty-three million, eight hundred twenty-two thousand, five hundred one".