20042113 has 8 divisors (see below), whose sum is σ = 24667328. Its totient is φ = 15857424.

The previous prime is 20042107. The next prime is 20042117. The reversal of 20042113 is 31124002.

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 20042113 - 2¹⁷ = 19911041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20042093 and 20042102.

It is not an unprimeable number, because it can be changed into a prime (20042117) 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, 110031 + ... + 110212.

It is an arithmetic number, because the mean of its divisors is an integer number (3083416).

Almost surely, 2^20042113 is an apocalyptic number.

It is an amenable number.

20042113 is a deficient number, since it is larger than the sum of its proper divisors (4625215).

20042113 is a wasteful number, since it uses less digits than its factorization.

20042113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220263.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20042113 is about 4476.8418555942. The cubic root of 20042113 is about 271.6321485411.

Adding to 20042113 its reverse (31124002), we get a palindrome (51166115).

The spelling of 20042113 in words is "twenty million, forty-two thousand, one hundred thirteen".