23311240231313 has 4 divisors (see below), whose sum is σ = 23340055114980. Its totient is φ = 23282425347648.

The previous prime is 23311240231297. The next prime is 23311240231369. The reversal of 23311240231313 is 31313204211332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13524028315009 + 9787211916304 = 3677503^2 + 3128452^2 .

It is a cyclic number.

It is not a de Polignac number, because 23311240231313 - 2⁴ = 23311240231297 is a prime.

It is a super-2 number, since 2×23311240231313² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23311240231373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14407440620 + ... + 14407442237.

It is an arithmetic number, because the mean of its divisors is an integer number (5835013778745).

Almost surely, 2^{23311240231313} is an apocalyptic number.

It is an amenable number.

23311240231313 is a deficient number, since it is larger than the sum of its proper divisors (28814883667).

23311240231313 is an equidigital number, since it uses as much as digits as its factorization.

23311240231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28814883666.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 23311240231313 its reverse (31313204211332), we get a palindrome (54624444442645).

The spelling of 23311240231313 in words is "twenty-three trillion, three hundred eleven billion, two hundred forty million, two hundred thirty-one thousand, three hundred thirteen".