251114020243 has 2 divisors, whose sum is σ = 251114020244. Its totient is φ = 251114020242.

The previous prime is 251114020181. The next prime is 251114020279. The reversal of 251114020243 is 342020411152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251114020243 - 2⁹ = 251114019731 is a prime.

It is not a weakly prime, because it can be changed into another prime (251114024243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125557010121 + 125557010122.

It is an arithmetic number, because the mean of its divisors is an integer number (125557010122).

Almost surely, 2^251114020243 is an apocalyptic number.

251114020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

251114020243 is an equidigital number, since it uses as much as digits as its factorization.

251114020243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 251114020243 its reverse (342020411152), we get a palindrome (593134431395).

The spelling of 251114020243 in words is "two hundred fifty-one billion, one hundred fourteen million, twenty thousand, two hundred forty-three".