1242924911 has 2 divisors, whose sum is σ = 1242924912. Its totient is φ = 1242924910.

The previous prime is 1242924871. The next prime is 1242924931. The reversal of 1242924911 is 1194292421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242924911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242924931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621462455 + 621462456.

It is an arithmetic number, because the mean of its divisors is an integer number (621462456).

Almost surely, 2^1242924911 is an apocalyptic number.

1242924911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242924911 is an equidigital number, since it uses as much as digits as its factorization.

1242924911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 1242924911 is about 35255.1402067840. The cubic root of 1242924911 is about 1075.1811228257.

The spelling of 1242924911 in words is "one billion, two hundred forty-two million, nine hundred twenty-four thousand, nine hundred eleven".