23440003131 has 16 divisors (see below), whose sum is σ = 31921885184. Its totient is φ = 15295366944.

The previous prime is 23440003129. The next prime is 23440003199. The reversal of 23440003131 is 13130004432.

It is not a de Polignac number, because 23440003131 - 2¹ = 23440003129 is a prime.

It is a super-2 number, since 2×23440003131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23440003098 and 23440003107.

It is not an unprimeable number, because it can be changed into a prime (23440003831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339835 + ... + 402948.

It is an arithmetic number, because the mean of its divisors is an integer number (1995117824).

Almost surely, 2^23440003131 is an apocalyptic number.

23440003131 is a deficient number, since it is larger than the sum of its proper divisors (8481882053).

23440003131 is a wasteful number, since it uses less digits than its factorization.

23440003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743010.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23440003131 its reverse (13130004432), we get a palindrome (36570007563).

The spelling of 23440003131 in words is "twenty-three billion, four hundred forty million, three thousand, one hundred thirty-one".