4251106011181 has 2 divisors, whose sum is σ = 4251106011182. Its totient is φ = 4251106011180.

The previous prime is 4251106011157. The next prime is 4251106011239. The reversal of 4251106011181 is 1811106011524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4221007231081 + 30098780100 = 2054509^2 + 173490^2 .

It is a cyclic number.

It is not a de Polignac number, because 4251106011181 - 2¹³ = 4251106002989 is a prime.

It is a super-2 number, since 2×4251106011181² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4251106011881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125553005590 + 2125553005591.

It is an arithmetic number, because the mean of its divisors is an integer number (2125553005591).

Almost surely, 2^{4251106011181} is an apocalyptic number.

It is an amenable number.

4251106011181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251106011181 is an equidigital number, since it uses as much as digits as its factorization.

4251106011181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 31.

The spelling of 4251106011181 in words is "four trillion, two hundred fifty-one billion, one hundred six million, eleven thousand, one hundred eighty-one".