20123000 has 32 divisors (see below), whose sum is σ = 47090160. Its totient is φ = 8048800.

The previous prime is 20122997. The next prime is 20123017. The reversal of 20123000 is 32102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9062 + ... + 11061.

Almost surely, 2^20123000 is an apocalyptic number.

20123000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123000 is an abundant number, since it is smaller than the sum of its proper divisors (26967160).

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

20123000 is a wasteful number, since it uses less digits than its factorization.

20123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20144 (or 20130 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20123000 is about 4485.8666944081. The cubic root of 20123000 is about 271.9970804185.

Adding to 20123000 its reverse (32102), we get a palindrome (20155102).

The spelling of 20123000 in words is "twenty million, one hundred twenty-three thousand".