242304612691 has 2 divisors, whose sum is σ = 242304612692. Its totient is φ = 242304612690.

The previous prime is 242304612509. The next prime is 242304612731. The reversal of 242304612691 is 196216403242.

It is a happy number.

It is an a-pointer prime, because the next prime (242304612731) can be obtained adding 242304612691 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242304612691 - 2¹⁷ = 242304481619 is a prime.

It is a super-2 number, since 2×242304612691² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242304612091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121152306345 + 121152306346.

It is an arithmetic number, because the mean of its divisors is an integer number (121152306346).

Almost surely, 2^242304612691 is an apocalyptic number.

242304612691 is a deficient number, since it is larger than the sum of its proper divisors (1).

242304612691 is an equidigital number, since it uses as much as digits as its factorization.

242304612691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 242304612691 in words is "two hundred forty-two billion, three hundred four million, six hundred twelve thousand, six hundred ninety-one".