211235013 has 96 divisors (see below), whose sum is σ = 381957120. Its totient is φ = 114174720.

The previous prime is 211234981. The next prime is 211235033. The reversal of 211235013 is 310532112.

It is not a de Polignac number, because 211235013 - 2⁵ = 211234981 is a prime.

It is a super-2 number, since 2×211235013² = 89240461434220338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211235033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1974106 + ... + 1974212.

It is an arithmetic number, because the mean of its divisors is an integer number (3978720).

Almost surely, 2^211235013 is an apocalyptic number.

211235013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

211235013 is a deficient number, since it is larger than the sum of its proper divisors (170722107).

211235013 is a wasteful number, since it uses less digits than its factorization.

211235013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 211235013 is about 14533.9262761306. The cubic root of 211235013 is about 595.5551281692. Note that the first 3 decimals are identical.

Adding to 211235013 its reverse (310532112), we get a palindrome (521767125).

The spelling of 211235013 in words is "two hundred eleven million, two hundred thirty-five thousand, thirteen".