20001124345 has 8 divisors (see below), whose sum is σ = 25264578240. Its totient is φ = 15158746800.

The previous prime is 20001124303. The next prime is 20001124349. The reversal of 20001124345 is 54342110002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20001124345 - 2³¹ = 17853640697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001124349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105268981 + ... + 105269170.

It is an arithmetic number, because the mean of its divisors is an integer number (3158072280).

Almost surely, 2^20001124345 is an apocalyptic number.

It is an amenable number.

20001124345 is a deficient number, since it is larger than the sum of its proper divisors (5263453895).

20001124345 is a wasteful number, since it uses less digits than its factorization.

20001124345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210538175.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20001124345 its reverse (54342110002), we get a palindrome (74343234347).

The spelling of 20001124345 in words is "twenty billion, one million, one hundred twenty-four thousand, three hundred forty-five".