20803845242 has 24 divisors (see below), whose sum is σ = 32283875808. Its totient is φ = 10054203960.

The previous prime is 20803845241. The next prime is 20803845259. The reversal of 20803845242 is 24254830802.

It is a junction number, because it is equal to n+sod(n) for n = 20803845196 and 20803845205.

It is not an unprimeable number, because it can be changed into a prime (20803845241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1698713 + ... + 1710915.

It is an arithmetic number, because the mean of its divisors is an integer number (1345161492).

Almost surely, 2^20803845242 is an apocalyptic number.

20803845242 is a deficient number, since it is larger than the sum of its proper divisors (11480030566).

20803845242 is a wasteful number, since it uses less digits than its factorization.

20803845242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13154 (or 13123 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The spelling of 20803845242 in words is "twenty billion, eight hundred three million, eight hundred forty-five thousand, two hundred forty-two".