123120285396 has 96 divisors (see below), whose sum is σ = 293845039488. Its totient is φ = 40114206720.

The previous prime is 123120285391. The next prime is 123120285451. The reversal of 123120285396 is 693582021321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123120285391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48836616 + ... + 48839136.

It is an arithmetic number, because the mean of its divisors is an integer number (3060885828).

Almost surely, 2^123120285396 is an apocalyptic number.

It is an amenable number.

123120285396 is an abundant number, since it is smaller than the sum of its proper divisors (170724754092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123120285396 is a wasteful number, since it uses less digits than its factorization.

123120285396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081 (or 3079 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 123120285396 in words is "one hundred twenty-three billion, one hundred twenty million, two hundred eighty-five thousand, three hundred ninety-six".