1244122331 has 2 divisors, whose sum is σ = 1244122332. Its totient is φ = 1244122330.

The previous prime is 1244122309. The next prime is 1244122379. The reversal of 1244122331 is 1332214421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244122331 is a prime.

It is a super-2 number, since 2×1244122331² = 3095680748985747122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1244122297 and 1244122306.

It is not a weakly prime, because it can be changed into another prime (1244122391) 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, 622061165 + 622061166.

It is an arithmetic number, because the mean of its divisors is an integer number (622061166).

Almost surely, 2^1244122331 is an apocalyptic number.

1244122331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244122331 is an equidigital number, since it uses as much as digits as its factorization.

1244122331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 1244122331 is about 35272.1183231175. The cubic root of 1244122331 is about 1075.5262845094.

Adding to 1244122331 its reverse (1332214421), we get a palindrome (2576336752).

The spelling of 1244122331 in words is "one billion, two hundred forty-four million, one hundred twenty-two thousand, three hundred thirty-one".