123012332989 has 16 divisors (see below), whose sum is σ = 151418979712. Its totient is φ = 97316106048.

The previous prime is 123012332977. The next prime is 123012332999. The reversal of 123012332989 is 989233210321.

It is not a de Polignac number, because 123012332989 - 2⁹ = 123012332477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012332929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673162 + ... + 836164.

It is an arithmetic number, because the mean of its divisors is an integer number (9463686232).

Almost surely, 2^123012332989 is an apocalyptic number.

It is an amenable number.

123012332989 is a deficient number, since it is larger than the sum of its proper divisors (28406646723).

123012332989 is a wasteful number, since it uses less digits than its factorization.

123012332989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171316.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 123012332989 in words is "one hundred twenty-three billion, twelve million, three hundred thirty-two thousand, nine hundred eighty-nine".