651110240243 has 2 divisors, whose sum is σ = 651110240244. Its totient is φ = 651110240242.

The previous prime is 651110240233. The next prime is 651110240281. The reversal of 651110240243 is 342042011156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651110240243 - 2¹⁴ = 651110223859 is a prime.

It is not a weakly prime, because it can be changed into another prime (651110240233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325555120121 + 325555120122.

It is an arithmetic number, because the mean of its divisors is an integer number (325555120122).

Almost surely, 2^651110240243 is an apocalyptic number.

651110240243 is a deficient number, since it is larger than the sum of its proper divisors (1).

651110240243 is an equidigital number, since it uses as much as digits as its factorization.

651110240243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 651110240243 its reverse (342042011156), we get a palindrome (993152251399).

The spelling of 651110240243 in words is "six hundred fifty-one billion, one hundred ten million, two hundred forty thousand, two hundred forty-three".