1242330377 has 2 divisors, whose sum is σ = 1242330378. Its totient is φ = 1242330376.

The previous prime is 1242330359. The next prime is 1242330413. The reversal of 1242330377 is 7730332421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 756745081 + 485585296 = 27509^2 + 22036^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242330377 - 2¹⁶ = 1242264841 is a prime.

It is a super-3 number, since 3×1242330377³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1242330307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621165188 + 621165189.

It is an arithmetic number, because the mean of its divisors is an integer number (621165189).

Almost surely, 2^1242330377 is an apocalyptic number.

It is an amenable number.

1242330377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242330377 is an equidigital number, since it uses as much as digits as its factorization.

1242330377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 1242330377 is about 35246.7073213939. The cubic root of 1242330377 is about 1075.0096633709.

Adding to 1242330377 its reverse (7730332421), we get a palindrome (8972662798).

The spelling of 1242330377 in words is "one billion, two hundred forty-two million, three hundred thirty thousand, three hundred seventy-seven".