211954011337 has 2 divisors, whose sum is σ = 211954011338. Its totient is φ = 211954011336.

The previous prime is 211954011329. The next prime is 211954011343. The reversal of 211954011337 is 733110459112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192303298576 + 19650712761 = 438524^2 + 140181^2 .

It is a cyclic number.

It is not a de Polignac number, because 211954011337 - 2³ = 211954011329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211954011296 and 211954011305.

It is not a weakly prime, because it can be changed into another prime (211954011037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105977005668 + 105977005669.

It is an arithmetic number, because the mean of its divisors is an integer number (105977005669).

Almost surely, 2^211954011337 is an apocalyptic number.

It is an amenable number.

211954011337 is a deficient number, since it is larger than the sum of its proper divisors (1).

211954011337 is an equidigital number, since it uses as much as digits as its factorization.

211954011337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 211954011337 in words is "two hundred eleven billion, nine hundred fifty-four million, eleven thousand, three hundred thirty-seven".