2123173360 has 80 divisors (see below), whose sum is σ = 6154463232. Its totient is φ = 661766400.

The previous prime is 2123173321. The next prime is 2123173369. The reversal of 2123173360 is 633713212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2123173360² = 9015730233227379200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123173369) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 166176 + ... + 178495.

Almost surely, 2^2123173360 is an apocalyptic number.

2123173360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123173360 is an abundant number, since it is smaller than the sum of its proper divisors (4031289872).

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

2123173360 is a wasteful number, since it uses less digits than its factorization.

2123173360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344702 (or 344696 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 2123173360 is about 46077.9053343357. The cubic root of 2123173360 is about 1285.2723128011.

Adding to 2123173360 its reverse (633713212), we get a palindrome (2756886572).

The spelling of 2123173360 in words is "two billion, one hundred twenty-three million, one hundred seventy-three thousand, three hundred sixty".