123036634406 has 16 divisors (see below), whose sum is σ = 211017599520. Its totient is φ = 52705572480.

The previous prime is 123036634381. The next prime is 123036634417. The reversal of 123036634406 is 604436630321.

It is a self number, because there is not a number n which added to its sum of digits gives 123036634406.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2003141 + ... + 2063648.

It is an arithmetic number, because the mean of its divisors is an integer number (13188599970).

Almost surely, 2^123036634406 is an apocalyptic number.

123036634406 is a deficient number, since it is larger than the sum of its proper divisors (87980965114).

123036634406 is a wasteful number, since it uses less digits than its factorization.

123036634406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068959.

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 123036634406 in words is "one hundred twenty-three billion, thirty-six million, six hundred thirty-four thousand, four hundred six".