23400221131 has 8 divisors (see below), whose sum is σ = 26763867360. Its totient is φ = 20041764288.

The previous prime is 23400221123. The next prime is 23400221167. The reversal of 23400221131 is 13112200432.

It is a happy number.

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

It is not a de Polignac number, because 23400221131 - 2³ = 23400221123 is a prime.

It is a super-2 number, since 2×23400221131² (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 = 23400221099 and 23400221108.

It is not an unprimeable number, because it can be changed into a prime (23400221231) 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, 1287676 + ... + 1305721.

It is an arithmetic number, because the mean of its divisors is an integer number (3345483420).

Almost surely, 2^23400221131 is an apocalyptic number.

23400221131 is a deficient number, since it is larger than the sum of its proper divisors (3363646229).

23400221131 is a wasteful number, since it uses less digits than its factorization.

23400221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594693.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23400221131 its reverse (13112200432), we get a palindrome (36512421563).

The spelling of 23400221131 in words is "twenty-three billion, four hundred million, two hundred twenty-one thousand, one hundred thirty-one".