23211340131 has 72 divisors (see below), whose sum is σ = 37518833664. Its totient is φ = 12726248640.

The previous prime is 23211340091. The next prime is 23211340157. The reversal of 23211340131 is 13104311232.

It is not a de Polignac number, because 23211340131 - 2¹¹ = 23211338083 is a prime.

It is a super-2 number, since 2×23211340131² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23211340098 and 23211340107.

It is not an unprimeable number, because it can be changed into a prime (23211340181) 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 71 ways as a sum of consecutive naturals, for example, 23612266 + ... + 23613248.

It is an arithmetic number, because the mean of its divisors is an integer number (521094912).

Almost surely, 2^23211340131 is an apocalyptic number.

23211340131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23211340131 is a deficient number, since it is larger than the sum of its proper divisors (14307493533).

23211340131 is a wasteful number, since it uses less digits than its factorization.

23211340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23211340131 its reverse (13104311232), we get a palindrome (36315651363).

The spelling of 23211340131 in words is "twenty-three billion, two hundred eleven million, three hundred forty thousand, one hundred thirty-one".