123173022 has 16 divisors (see below), whose sum is σ = 281538432. Its totient is φ = 35192280.

The previous prime is 123173009. The next prime is 123173033. The reversal of 123173022 is 220371321.

It is a super-2 number, since 2×123173022² = 30343186697224968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 123173022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466304 + ... + 1466387.

It is an arithmetic number, because the mean of its divisors is an integer number (17596152).

Almost surely, 2^123173022 is an apocalyptic number.

123173022 is an abundant number, since it is smaller than the sum of its proper divisors (158365410).

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

123173022 is a wasteful number, since it uses less digits than its factorization.

123173022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932703.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 123173022 is about 11098.3341993292. The cubic root of 123173022 is about 497.5520641118.

The spelling of 123173022 in words is "one hundred twenty-three million, one hundred seventy-three thousand, twenty-two".