211013011 has 4 divisors (see below), whose sum is σ = 230196024. Its totient is φ = 191830000.

The previous prime is 211013003. The next prime is 211013021. The reversal of 211013011 is 110310112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211013011 - 2³ = 211013003 is a prime.

It is a super-2 number, since 2×211013011² = 89052981622572242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211013021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9591490 + ... + 9591511.

It is an arithmetic number, because the mean of its divisors is an integer number (57549006).

Almost surely, 2^211013011 is an apocalyptic number.

211013011 is a deficient number, since it is larger than the sum of its proper divisors (19183013).

211013011 is a wasteful number, since it uses less digits than its factorization.

211013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19183012.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 211013011 is about 14526.2868965197. The cubic root of 211013011 is about 595.3464178602.

Adding to 211013011 its reverse (110310112), we get a palindrome (321323123).

The spelling of 211013011 in words is "two hundred eleven million, thirteen thousand, eleven".