211117904051 has 2 divisors, whose sum is σ = 211117904052. Its totient is φ = 211117904050.

The previous prime is 211117904033. The next prime is 211117904069. The reversal of 211117904051 is 150409711112.

211117904051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (211117904033) and next prime (211117904069).

It is a cyclic number.

It is not a de Polignac number, because 211117904051 - 2¹⁴ = 211117887667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211117903999 and 211117904017.

It is not a weakly prime, because it can be changed into another prime (211117904251) 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, 105558952025 + 105558952026.

It is an arithmetic number, because the mean of its divisors is an integer number (105558952026).

Almost surely, 2^211117904051 is an apocalyptic number.

211117904051 is a deficient number, since it is larger than the sum of its proper divisors (1).

211117904051 is an equidigital number, since it uses as much as digits as its factorization.

211117904051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 32.

The spelling of 211117904051 in words is "two hundred eleven billion, one hundred seventeen million, nine hundred four thousand, fifty-one".