223232231381 has 2 divisors, whose sum is σ = 223232231382. Its totient is φ = 223232231380.

The previous prime is 223232231377. The next prime is 223232231477. The reversal of 223232231381 is 183132232322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214916615281 + 8315616100 = 463591^2 + 91190^2 .

It is a cyclic number.

It is not a de Polignac number, because 223232231381 - 2² = 223232231377 is a prime.

It is a super-3 number, since 3×223232231381³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223232231881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111616115690 + 111616115691.

It is an arithmetic number, because the mean of its divisors is an integer number (111616115691).

Almost surely, 2^223232231381 is an apocalyptic number.

It is an amenable number.

223232231381 is a deficient number, since it is larger than the sum of its proper divisors (1).

223232231381 is an equidigital number, since it uses as much as digits as its factorization.

223232231381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The spelling of 223232231381 in words is "two hundred twenty-three billion, two hundred thirty-two million, two hundred thirty-one thousand, three hundred eighty-one".