242544225331 has 2 divisors, whose sum is σ = 242544225332. Its totient is φ = 242544225330.

The previous prime is 242544225283. The next prime is 242544225437. The reversal of 242544225331 is 133522445242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242544225331 - 2¹⁷ = 242544094259 is a prime.

It is a super-2 number, since 2×242544225331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242544225631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121272112665 + 121272112666.

It is an arithmetic number, because the mean of its divisors is an integer number (121272112666).

Almost surely, 2^242544225331 is an apocalyptic number.

242544225331 is a deficient number, since it is larger than the sum of its proper divisors (1).

242544225331 is an equidigital number, since it uses as much as digits as its factorization.

242544225331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 37.

The spelling of 242544225331 in words is "two hundred forty-two billion, five hundred forty-four million, two hundred twenty-five thousand, three hundred thirty-one".