20123033 has 16 divisors (see below), whose sum is σ = 24560640. Its totient is φ = 16102800.
The previous prime is 20123029. The next prime is 20123039. The reversal of 20123033 is 33032102.
It is not a de Polignac number, because 20123033 - 22 = 20123029 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20122999 and 20123017.
It is not an unprimeable number, because it can be changed into a prime (20123039) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8378 + ... + 10508.
It is an arithmetic number, because the mean of its divisors is an integer number (1535040).
Almost surely, 220123033 is an apocalyptic number.
It is an amenable number.
20123033 is a deficient number, since it is larger than the sum of its proper divisors (4437607).
20123033 is a wasteful number, since it uses less digits than its factorization.
20123033 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2228.
The product of its (nonzero) digits is 108, while the sum is 14.
The square root of 20123033 is about 4485.8703726256. The cubic root of 20123033 is about 271.9972291024.
Adding to 20123033 its reverse (33032102), we get a palindrome (53155135).
The spelling of 20123033 in words is "twenty million, one hundred twenty-three thousand, thirty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •