20112042 has 16 divisors (see below), whose sum is σ = 40677120. Its totient is φ = 6628512.

The previous prime is 20112031. The next prime is 20112061. The reversal of 20112042 is 24021102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18298 + ... + 19365.

It is an arithmetic number, because the mean of its divisors is an integer number (2542320).

Almost surely, 2^20112042 is an apocalyptic number.

20112042 is an abundant number, since it is smaller than the sum of its proper divisors (20565078).

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

20112042 is a wasteful number, since it uses less digits than its factorization.

20112042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37757.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20112042 is about 4484.6451364629. The cubic root of 20112042 is about 271.9476993588.

Adding to 20112042 its reverse (24021102), we get a palindrome (44133144).

The spelling of 20112042 in words is "twenty million, one hundred twelve thousand, forty-two".