2113555211 has 2 divisors, whose sum is σ = 2113555212. Its totient is φ = 2113555210.

The previous prime is 2113555127. The next prime is 2113555217. The reversal of 2113555211 is 1125553112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113555211 - 2¹⁰ = 2113554187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113555217) 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, 1056777605 + 1056777606.

It is an arithmetic number, because the mean of its divisors is an integer number (1056777606).

Almost surely, 2^2113555211 is an apocalyptic number.

2113555211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113555211 is an equidigital number, since it uses as much as digits as its factorization.

2113555211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1500, while the sum is 26.

The square root of 2113555211 is about 45973.4185263615. The cubic root of 2113555211 is about 1283.3285785098.

The spelling of 2113555211 in words is "two billion, one hundred thirteen million, five hundred fifty-five thousand, two hundred eleven".