23311313320 has 16 divisors (see below), whose sum is σ = 52450455060. Its totient is φ = 9324525312.

The previous prime is 23311313309. The next prime is 23311313321. The reversal of 23311313320 is 2331311332.

It can be written as a sum of positive squares in 2 ways, for example, as 22591893636 + 719419684 = 150306^2 + 26822^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23311313291 and 23311313300.

It is not an unprimeable number, because it can be changed into a prime (23311313321) 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 3 ways as a sum of consecutive naturals, for example, 291391377 + ... + 291391456.

Almost surely, 2^23311313320 is an apocalyptic number.

23311313320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23311313320 is an abundant number, since it is smaller than the sum of its proper divisors (29139141740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23311313320 is a wasteful number, since it uses less digits than its factorization.

23311313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582782844 (or 582782840 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23311313320 its reverse (2331311332), we get a palindrome (25642624652).

The spelling of 23311313320 in words is "twenty-three billion, three hundred eleven million, three hundred thirteen thousand, three hundred twenty".