20230120 has 32 divisors (see below), whose sum is σ = 46751400. Its totient is φ = 7872768.

The previous prime is 20230109. The next prime is 20230121. The reversal of 20230120 is 2103202.

It can be written as a sum of positive squares in 4 ways, for example, as 20016676 + 213444 = 4474^2 + 462^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20230097 and 20230106.

It is not an unprimeable number, because it can be changed into a prime (20230121) 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, 5355 + ... + 8314.

Almost surely, 2^20230120 is an apocalyptic number.

20230120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20230120 is an abundant number, since it is smaller than the sum of its proper divisors (26521280).

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

20230120 is a wasteful number, since it uses less digits than its factorization.

20230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13717 (or 13713 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20230120 is about 4497.7905687126. The cubic root of 20230120 is about 272.4788637760.

Adding to 20230120 its reverse (2103202), we get a palindrome (22333322).

The spelling of 20230120 in words is "twenty million, two hundred thirty thousand, one hundred twenty".