23313031405 has 8 divisors (see below), whose sum is σ = 28369661184. Its totient is φ = 18387742800.

The previous prime is 23313031363. The next prime is 23313031409. The reversal of 23313031405 is 50413031332.

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

It is not a de Polignac number, because 23313031405 - 2¹³ = 23313023213 is a prime.

It is a super-4 number, since 4×23313031405⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23313031405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313031409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32834901 + ... + 32835610.

It is an arithmetic number, because the mean of its divisors is an integer number (3546207648).

Almost surely, 2^23313031405 is an apocalyptic number.

It is an amenable number.

23313031405 is a deficient number, since it is larger than the sum of its proper divisors (5056629779).

23313031405 is an equidigital number, since it uses as much as digits as its factorization.

23313031405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65670587.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 23313031405 its reverse (50413031332), we get a palindrome (73726062737).

The spelling of 23313031405 in words is "twenty-three billion, three hundred thirteen million, thirty-one thousand, four hundred five".