1223498231 has 2 divisors, whose sum is σ = 1223498232. Its totient is φ = 1223498230.

The previous prime is 1223498209. The next prime is 1223498239. The reversal of 1223498231 is 1328943221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1328943221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223498231 - 2¹⁰ = 1223497207 is a prime.

It is a super-2 number, since 2×1223498231² = 2993895842520258722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223498191 and 1223498200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223498239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611749115 + 611749116.

It is an arithmetic number, because the mean of its divisors is an integer number (611749116).

Almost surely, 2^1223498231 is an apocalyptic number.

1223498231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223498231 is an equidigital number, since it uses as much as digits as its factorization.

1223498231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 1223498231 is about 34978.5395778612. The cubic root of 1223498231 is about 1069.5500571320.

The spelling of 1223498231 in words is "one billion, two hundred twenty-three million, four hundred ninety-eight thousand, two hundred thirty-one".