20703218233 has 8 divisors (see below), whose sum is σ = 21718774080. Its totient is φ = 19707772560.

The previous prime is 20703218189. The next prime is 20703218269. The reversal of 20703218233 is 33281230702.

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 20703218233 - 2⁹ = 20703217721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20703218195 and 20703218204.

It is not an unprimeable number, because it can be changed into a prime (20703218293) 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, 5025435 + ... + 5029552.

It is an arithmetic number, because the mean of its divisors is an integer number (2714846760).

Almost surely, 2^20703218233 is an apocalyptic number.

It is an amenable number.

20703218233 is a deficient number, since it is larger than the sum of its proper divisors (1015555847).

20703218233 is a wasteful number, since it uses less digits than its factorization.

20703218233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055087.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 20703218233 its reverse (33281230702), we get a palindrome (53984448935).

The spelling of 20703218233 in words is "twenty billion, seven hundred three million, two hundred eighteen thousand, two hundred thirty-three".