242423372731 has 2 divisors, whose sum is σ = 242423372732. Its totient is φ = 242423372730.

The previous prime is 242423372717. The next prime is 242423372791. The reversal of 242423372731 is 137273324242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242423372731 - 2⁷ = 242423372603 is a prime.

It is a super-2 number, since 2×242423372731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242423372791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121211686365 + 121211686366.

It is an arithmetic number, because the mean of its divisors is an integer number (121211686366).

Almost surely, 2^242423372731 is an apocalyptic number.

242423372731 is a deficient number, since it is larger than the sum of its proper divisors (1).

242423372731 is an equidigital number, since it uses as much as digits as its factorization.

242423372731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 40.

Adding to 242423372731 its reverse (137273324242), we get a palindrome (379696696973).

The spelling of 242423372731 in words is "two hundred forty-two billion, four hundred twenty-three million, three hundred seventy-two thousand, seven hundred thirty-one".