20031813242 has 16 divisors (see below), whose sum is σ = 34452116160. Its totient is φ = 8557096608.

The previous prime is 20031813239. The next prime is 20031813293. The reversal of 20031813242 is 24231813002.

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, 2326067 + ... + 2334662.

It is an arithmetic number, because the mean of its divisors is an integer number (2153257260).

Almost surely, 2^20031813242 is an apocalyptic number.

20031813242 is a deficient number, since it is larger than the sum of its proper divisors (14420302918).

20031813242 is a wasteful number, since it uses less digits than its factorization.

20031813242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661045.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 20031813242 in words is "twenty billion, thirty-one million, eight hundred thirteen thousand, two hundred forty-two".