20002240123 has 8 divisors (see below), whose sum is σ = 20052836528. Its totient is φ = 19951691904.

The previous prime is 20002240087. The next prime is 20002240129. The reversal of 20002240123 is 32104220002.

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 20002240123 - 2¹⁷ = 20002109051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002240097 and 20002240106.

It is not an unprimeable number, because it can be changed into a prime (20002240129) 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, 905911 + ... + 927727.

It is an arithmetic number, because the mean of its divisors is an integer number (2506604566).

Almost surely, 2^20002240123 is an apocalyptic number.

20002240123 is a deficient number, since it is larger than the sum of its proper divisors (50596405).

20002240123 is a wasteful number, since it uses less digits than its factorization.

20002240123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24093.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20002240123 its reverse (32104220002), we get a palindrome (52106460125).

The spelling of 20002240123 in words is "twenty billion, two million, two hundred forty thousand, one hundred twenty-three".