23311320203 has 8 divisors (see below), whose sum is σ = 24332985600. Its totient is φ = 22290332328.

The previous prime is 23311320187. The next prime is 23311320211. The reversal of 23311320203 is 30202311332.

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 23311320203 - 2⁴ = 23311320187 is a prime.

It is a super-2 number, since 2×23311320203² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23311320223) 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, 98423 + ... + 237296.

It is an arithmetic number, because the mean of its divisors is an integer number (3041623200).

Almost surely, 2^23311320203 is an apocalyptic number.

23311320203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23311320203 is a deficient number, since it is larger than the sum of its proper divisors (1021665397).

23311320203 is a wasteful number, since it uses less digits than its factorization.

23311320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338761.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23311320203 its reverse (30202311332), we get a palindrome (53513631535).

The spelling of 23311320203 in words is "twenty-three billion, three hundred eleven million, three hundred twenty thousand, two hundred three".