101811712252051 has 2 divisors, whose sum is σ = 101811712252052. Its totient is φ = 101811712252050.

The previous prime is 101811712252039. The next prime is 101811712252123. The reversal of 101811712252051 is 150252217118101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101811712252051 - 2¹³ = 101811712243859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101811712252051.

It is not a weakly prime, because it can be changed into another prime (101811712252351) 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, 50905856126025 + 50905856126026.

It is an arithmetic number, because the mean of its divisors is an integer number (50905856126026).

Almost surely, 2^{101811712252051} is an apocalyptic number.

101811712252051 is a deficient number, since it is larger than the sum of its proper divisors (1).

101811712252051 is an equidigital number, since it uses as much as digits as its factorization.

101811712252051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 37.

The spelling of 101811712252051 in words is "one hundred one trillion, eight hundred eleven billion, seven hundred twelve million, two hundred fifty-two thousand, fifty-one".