11905794211 has 2 divisors, whose sum is σ = 11905794212. Its totient is φ = 11905794210.

The previous prime is 11905794181. The next prime is 11905794223. The reversal of 11905794211 is 11249750911.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11905794211 is a prime.

It is a super-2 number, since 2×11905794211² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11905794811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5952897105 + 5952897106.

It is an arithmetic number, because the mean of its divisors is an integer number (5952897106).

Almost surely, 2^11905794211 is an apocalyptic number.

11905794211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11905794211 is an equidigital number, since it uses as much as digits as its factorization.

11905794211 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 40.

The spelling of 11905794211 in words is "eleven billion, nine hundred five million, seven hundred ninety-four thousand, two hundred eleven".