242454105231 has 16 divisors (see below), whose sum is σ = 348148063200. Its totient is φ = 149198739840.

The previous prime is 242454105203. The next prime is 242454105287. The reversal of 242454105231 is 132501454242.

It is not a de Polignac number, because 242454105231 - 2¹¹ = 242454103183 is a prime.

It is a super-2 number, since 2×242454105231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242454105192 and 242454105201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242454104231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2939745 + ... + 3021093.

It is an arithmetic number, because the mean of its divisors is an integer number (21759253950).

Almost surely, 2^242454105231 is an apocalyptic number.

242454105231 is a deficient number, since it is larger than the sum of its proper divisors (105693957969).

242454105231 is a wasteful number, since it uses less digits than its factorization.

242454105231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157786.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 242454105231 its reverse (132501454242), we get a palindrome (374955559473).

The spelling of 242454105231 in words is "two hundred forty-two billion, four hundred fifty-four million, one hundred five thousand, two hundred thirty-one".