23221131893 has 2 divisors, whose sum is σ = 23221131894. Its totient is φ = 23221131892.

The previous prime is 23221131853. The next prime is 23221132037. The reversal of 23221131893 is 39813112232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20656013284 + 2565118609 = 143722^2 + 50647^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221131893 - 2¹⁰ = 23221130869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221131833) 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 as a sum of consecutive naturals, namely, 11610565946 + 11610565947.

It is an arithmetic number, because the mean of its divisors is an integer number (11610565947).

Almost surely, 2^23221131893 is an apocalyptic number.

It is an amenable number.

23221131893 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221131893 is an equidigital number, since it uses as much as digits as its factorization.

23221131893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The spelling of 23221131893 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, eight hundred ninety-three".