251341423019 has 2 divisors, whose sum is σ = 251341423020. Its totient is φ = 251341423018.

The previous prime is 251341423007. The next prime is 251341423049. The reversal of 251341423019 is 910324143152.

It is a happy number.

251341423019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 251341423019 - 2³² = 247046455723 is a prime.

It is a super-2 number, since 2×251341423019² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 251341423019.

It is not a weakly prime, because it can be changed into another prime (251341423049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125670711509 + 125670711510.

It is an arithmetic number, because the mean of its divisors is an integer number (125670711510).

Almost surely, 2^251341423019 is an apocalyptic number.

251341423019 is a deficient number, since it is larger than the sum of its proper divisors (1).

251341423019 is an equidigital number, since it uses as much as digits as its factorization.

251341423019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 251341423019 in words is "two hundred fifty-one billion, three hundred forty-one million, four hundred twenty-three thousand, nineteen".