168923011 has 8 divisors (see below), whose sum is σ = 171198720. Its totient is φ = 166653192.

The previous prime is 168923003. The next prime is 168923021. The reversal of 168923011 is 110329861.

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

It is a cyclic number.

It is not a de Polignac number, because 168923011 - 2³ = 168923003 is a prime.

It is a super-2 number, since 2×168923011² = 57069967290612242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168923021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108706 + ... + 110248.

It is an arithmetic number, because the mean of its divisors is an integer number (21399840).

Almost surely, 2^168923011 is an apocalyptic number.

168923011 is a deficient number, since it is larger than the sum of its proper divisors (2275709).

168923011 is a wasteful number, since it uses less digits than its factorization.

168923011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 168923011 is about 12997.0385472999. The cubic root of 168923011 is about 552.7935130253.

The spelling of 168923011 in words is "one hundred sixty-eight million, nine hundred twenty-three thousand, eleven".