23431013011 has 12 divisors (see below), whose sum is σ = 28859808168. Its totient is φ = 18902329152.

The previous prime is 23431013003. The next prime is 23431013027. The reversal of 23431013011 is 11031013432.

It is not a de Polignac number, because 23431013011 - 2³ = 23431013003 is a prime.

It is a super-2 number, since 2×23431013011² (a number of 22 digits) contains 22 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 23431013011.

It is not an unprimeable number, because it can be changed into a prime (23431010011) 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 11 ways as a sum of consecutive naturals, for example, 14063401 + ... + 14065066.

It is an arithmetic number, because the mean of its divisors is an integer number (2404984014).

Almost surely, 2^23431013011 is an apocalyptic number.

23431013011 is a deficient number, since it is larger than the sum of its proper divisors (5428795157).

23431013011 is a wasteful number, since it uses less digits than its factorization.

23431013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28128498 (or 28128491 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23431013011 its reverse (11031013432), we get a palindrome (34462026443).

The spelling of 23431013011 in words is "twenty-three billion, four hundred thirty-one million, thirteen thousand, eleven".