123134942170 has 64 divisors (see below), whose sum is σ = 240611500800. Its totient is φ = 45211530240.

The previous prime is 123134942153. The next prime is 123134942173. The reversal of 123134942170 is 71249431321.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (123134942173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1657891 + ... + 1730569.

It is an arithmetic number, because the mean of its divisors is an integer number (3759554700).

Almost surely, 2^123134942170 is an apocalyptic number.

123134942170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123134942170 is a deficient number, since it is larger than the sum of its proper divisors (117476558630).

123134942170 is a wasteful number, since it uses less digits than its factorization.

123134942170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72983.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 123134942170 in words is "one hundred twenty-three billion, one hundred thirty-four million, nine hundred forty-two thousand, one hundred seventy".