242400020231 has 2 divisors, whose sum is σ = 242400020232. Its totient is φ = 242400020230.

The previous prime is 242400020201. The next prime is 242400020249. The reversal of 242400020231 is 132020004242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242400020231 - 2¹⁸ = 242399758087 is a prime.

It is a super-2 number, since 2×242400020231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242400020201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121200010115 + 121200010116.

It is an arithmetic number, because the mean of its divisors is an integer number (121200010116).

Almost surely, 2^242400020231 is an apocalyptic number.

242400020231 is a deficient number, since it is larger than the sum of its proper divisors (1).

242400020231 is an equidigital number, since it uses as much as digits as its factorization.

242400020231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 242400020231 its reverse (132020004242), we get a palindrome (374420024473).

The spelling of 242400020231 in words is "two hundred forty-two billion, four hundred million, twenty thousand, two hundred thirty-one".