823141223 has 2 divisors, whose sum is σ = 823141224. Its totient is φ = 823141222.

The previous prime is 823141169. The next prime is 823141247. The reversal of 823141223 is 322141328.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-823141223 is a prime.

It is a super-2 number, since 2×823141223² = 1355122946003871458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 823141192 and 823141201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823140223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411570611 + 411570612.

It is an arithmetic number, because the mean of its divisors is an integer number (411570612).

Almost surely, 2^823141223 is an apocalyptic number.

823141223 is a deficient number, since it is larger than the sum of its proper divisors (1).

823141223 is an equidigital number, since it uses as much as digits as its factorization.

823141223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 823141223 is about 28690.4378321419. The cubic root of 823141223 is about 937.1838238809.

The spelling of 823141223 in words is "eight hundred twenty-three million, one hundred forty-one thousand, two hundred twenty-three".