20123012113 has 8 divisors (see below), whose sum is σ = 20854907136. Its totient is φ = 19396290000.

The previous prime is 20123012111. The next prime is 20123012153. The reversal of 20123012113 is 31121032102.

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 20123012113 - 2¹ = 20123012111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285306 + ... + 1300867.

It is an arithmetic number, because the mean of its divisors is an integer number (2606863392).

Almost surely, 2^20123012113 is an apocalyptic number.

It is an amenable number.

20123012113 is a deficient number, since it is larger than the sum of its proper divisors (731895023).

20123012113 is a wasteful number, since it uses less digits than its factorization.

20123012113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586455.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20123012113 its reverse (31121032102), we get a palindrome (51244044215).

The spelling of 20123012113 in words is "twenty billion, one hundred twenty-three million, twelve thousand, one hundred thirteen".