20313122233 has 8 divisors (see below), whose sum is σ = 20341900800. Its totient is φ = 20284363488.

The previous prime is 20313122189. The next prime is 20313122251. The reversal of 20313122233 is 33222131302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20313122233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313122273) 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, 4235685 + ... + 4240477.

It is an arithmetic number, because the mean of its divisors is an integer number (2542737600).

Almost surely, 2^20313122233 is an apocalyptic number.

It is an amenable number.

20313122233 is a deficient number, since it is larger than the sum of its proper divisors (28778567).

20313122233 is a wasteful number, since it uses less digits than its factorization.

20313122233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20313122233 its reverse (33222131302), we get a palindrome (53535253535).

The spelling of 20313122233 in words is "twenty billion, three hundred thirteen million, one hundred twenty-two thousand, two hundred thirty-three".