211701794273 has 2 divisors, whose sum is σ = 211701794274. Its totient is φ = 211701794272.

The previous prime is 211701794231. The next prime is 211701794287. The reversal of 211701794273 is 372497107112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136979931664 + 74721862609 = 370108^2 + 273353^2 .

It is a cyclic number.

It is not a de Polignac number, because 211701794273 - 2¹⁶ = 211701728737 is a prime.

It is not a weakly prime, because it can be changed into another prime (211701794873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105850897136 + 105850897137.

It is an arithmetic number, because the mean of its divisors is an integer number (105850897137).

Almost surely, 2^211701794273 is an apocalyptic number.

It is an amenable number.

211701794273 is a deficient number, since it is larger than the sum of its proper divisors (1).

211701794273 is an equidigital number, since it uses as much as digits as its factorization.

211701794273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The spelling of 211701794273 in words is "two hundred eleven billion, seven hundred one million, seven hundred ninety-four thousand, two hundred seventy-three".