1242344371 has 2 divisors, whose sum is σ = 1242344372. Its totient is φ = 1242344370.

The previous prime is 1242344291. The next prime is 1242344387. The reversal of 1242344371 is 1734432421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242344371 - 2⁹ = 1242343859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242344171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621172185 + 621172186.

It is an arithmetic number, because the mean of its divisors is an integer number (621172186).

Almost surely, 2^1242344371 is an apocalyptic number.

1242344371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242344371 is an equidigital number, since it uses as much as digits as its factorization.

1242344371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 1242344371 is about 35246.9058358319. The cubic root of 1242344371 is about 1075.0136997713.

Adding to 1242344371 its reverse (1734432421), we get a palindrome (2976776792).

The spelling of 1242344371 in words is "one billion, two hundred forty-two million, three hundred forty-four thousand, three hundred seventy-one".