801008123 has 4 divisors (see below), whose sum is σ = 801572448. Its totient is φ = 800443800.

The previous prime is 801008119. The next prime is 801008147. The reversal of 801008123 is 321800108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 801008123 - 2² = 801008119 is a prime.

It is a super-2 number, since 2×801008123² = 1283228026223966258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801008423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280028 + ... + 282873.

It is an arithmetic number, because the mean of its divisors is an integer number (200393112).

Almost surely, 2^801008123 is an apocalyptic number.

801008123 is a deficient number, since it is larger than the sum of its proper divisors (564325).

801008123 is a wasteful number, since it uses less digits than its factorization.

801008123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564324.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 801008123 is about 28302.0869018523. The cubic root of 801008123 is about 928.7075440802.

The spelling of 801008123 in words is "eight hundred one million, eight thousand, one hundred twenty-three".