20123152 has 20 divisors (see below), whose sum is σ = 44558656. Its totient is φ = 8624160.

The previous prime is 20123149. The next prime is 20123171. The reversal of 20123152 is 25132102.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89724 + ... + 89947.

Almost surely, 2^20123152 is an apocalyptic number.

It is an amenable number.

20123152 is an abundant number, since it is smaller than the sum of its proper divisors (24435504).

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

20123152 is a wasteful number, since it uses less digits than its factorization.

20123152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179686 (or 179680 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20123152 is about 4485.8836364756. The cubic root of 20123152 is about 271.9977652642.

Adding to 20123152 its reverse (25132102), we get a palindrome (45255254).

The spelling of 20123152 in words is "twenty million, one hundred twenty-three thousand, one hundred fifty-two".