1231222367 has 2 divisors, whose sum is σ = 1231222368. Its totient is φ = 1231222366.

The previous prime is 1231222339. The next prime is 1231222373. The reversal of 1231222367 is 7632221321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231222367 - 2¹⁶ = 1231156831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231221367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615611183 + 615611184.

It is an arithmetic number, because the mean of its divisors is an integer number (615611184).

Almost surely, 2^1231222367 is an apocalyptic number.

1231222367 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231222367 is an equidigital number, since it uses as much as digits as its factorization.

1231222367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 1231222367 is about 35088.7783628898. The cubic root of 1231222367 is about 1071.7960829250.

Adding to 1231222367 its reverse (7632221321), we get a palindrome (8863443688).

The spelling of 1231222367 in words is "one billion, two hundred thirty-one million, two hundred twenty-two thousand, three hundred sixty-seven".