101246123551 has 2 divisors, whose sum is σ = 101246123552. Its totient is φ = 101246123550.

The previous prime is 101246123549. The next prime is 101246123557. The reversal of 101246123551 is 155321642101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101246123551 - 2¹ = 101246123549 is a prime.

Together with 101246123549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101246123557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50623061775 + 50623061776.

It is an arithmetic number, because the mean of its divisors is an integer number (50623061776).

Almost surely, 2^101246123551 is an apocalyptic number.

101246123551 is a deficient number, since it is larger than the sum of its proper divisors (1).

101246123551 is an equidigital number, since it uses as much as digits as its factorization.

101246123551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 101246123551 its reverse (155321642101), we get a palindrome (256567765652).

The spelling of 101246123551 in words is "one hundred one billion, two hundred forty-six million, one hundred twenty-three thousand, five hundred fifty-one".