123081372111 has 8 divisors (see below), whose sum is σ = 164462944000. Its totient is φ = 81877024152.

The previous prime is 123081372103. The next prime is 123081372119. The reversal of 123081372111 is 111273180321.

It is an interprime number because it is at equal distance from previous prime (123081372103) and next prime (123081372119).

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

It is not a de Polignac number, because 123081372111 - 2³ = 123081372103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123081372119) 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, 44304361 + ... + 44307138.

It is an arithmetic number, because the mean of its divisors is an integer number (20557868000).

Almost surely, 2^123081372111 is an apocalyptic number.

123081372111 is a deficient number, since it is larger than the sum of its proper divisors (41381571889).

123081372111 is an equidigital number, since it uses as much as digits as its factorization.

123081372111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88611965.

The product of its (nonzero) digits is 2016, while the sum is 30.

The spelling of 123081372111 in words is "one hundred twenty-three billion, eighty-one million, three hundred seventy-two thousand, one hundred eleven".