20123013 has 8 divisors (see below), whose sum is σ = 27756000. Its totient is φ = 12952688.

The previous prime is 20122997. The next prime is 20123017. The reversal of 20123013 is 31032102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20123013 - 2⁴ = 20122997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20123013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115563 + ... + 115736.

It is an arithmetic number, because the mean of its divisors is an integer number (3469500).

Almost surely, 2^20123013 is an apocalyptic number.

It is an amenable number.

20123013 is a deficient number, since it is larger than the sum of its proper divisors (7632987).

20123013 is a wasteful number, since it uses less digits than its factorization.

20123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231331.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20123013 is about 4485.8681434032. The cubic root of 20123013 is about 271.9971389910.

Adding to 20123013 its reverse (31032102), we get a palindrome (51155115).

The spelling of 20123013 in words is "twenty million, one hundred twenty-three thousand, thirteen".