240251031340243 has 32 divisors (see below), whose sum is σ = 305971630737408. Its totient is φ = 183186610483200.

The previous prime is 240251031340163. The next prime is 240251031340273. The reversal of 240251031340243 is 342043130152042.

It is a cyclic number.

It is not a de Polignac number, because 240251031340243 - 2³⁷ = 240113592386771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240251031340199 and 240251031340208.

It is not an unprimeable number, because it can be changed into a prime (240251031340273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10054371 + ... + 24116227.

It is an arithmetic number, because the mean of its divisors is an integer number (9561613460544).

Almost surely, 2^{240251031340243} is an apocalyptic number.

240251031340243 is a deficient number, since it is larger than the sum of its proper divisors (65720599397165).

240251031340243 is a wasteful number, since it uses less digits than its factorization.

240251031340243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14066643.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 240251031340243 its reverse (342043130152042), we get a palindrome (582294161492285).

The spelling of 240251031340243 in words is "two hundred forty trillion, two hundred fifty-one billion, thirty-one million, three hundred forty thousand, two hundred forty-three".