123120082121 has 8 divisors (see below), whose sum is σ = 123508030464. Its totient is φ = 122732419680.

The previous prime is 123120082087. The next prime is 123120082133. The reversal of 123120082121 is 121280021321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123120082121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123120082321) 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 7 ways as a sum of consecutive naturals, for example, 808136 + ... + 948326.

It is an arithmetic number, because the mean of its divisors is an integer number (15438503808).

Almost surely, 2^123120082121 is an apocalyptic number.

It is an amenable number.

123120082121 is a deficient number, since it is larger than the sum of its proper divisors (387948343).

123120082121 is a wasteful number, since it uses less digits than its factorization.

123120082121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142951.

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 123120082121 in words is "one hundred twenty-three billion, one hundred twenty million, eighty-two thousand, one hundred twenty-one".