123173130 has 32 divisors (see below), whose sum is σ = 295907904. Its totient is φ = 32813696.

The previous prime is 123173129. The next prime is 123173153. The reversal of 123173130 is 31371321.

It is a junction number, because it is equal to n+sod(n) for n = 123173097 and 123173106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56134 + ... + 58286.

It is an arithmetic number, because the mean of its divisors is an integer number (9247122).

Almost surely, 2^123173130 is an apocalyptic number.

123173130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123173130 is an abundant number, since it is smaller than the sum of its proper divisors (172734774).

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

123173130 is a wasteful number, since it uses less digits than its factorization.

123173130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 123173130 is about 11098.3390649232. The cubic root of 123173130 is about 497.5522095321.

The spelling of 123173130 in words is "one hundred twenty-three million, one hundred seventy-three thousand, one hundred thirty".