211023153 has 36 divisors (see below), whose sum is σ = 338358384. Its totient is φ = 126627600.

The previous prime is 211023149. The next prime is 211023161. The reversal of 211023153 is 351320112.

It is not a de Polignac number, because 211023153 - 2² = 211023149 is a prime.

It is a super-2 number, since 2×211023153² = 89061542204122818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211023143) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115618 + ... + 117428.

It is an arithmetic number, because the mean of its divisors is an integer number (9398844).

Almost surely, 2^211023153 is an apocalyptic number.

It is an amenable number.

211023153 is a deficient number, since it is larger than the sum of its proper divisors (127335231).

211023153 is a wasteful number, since it uses less digits than its factorization.

211023153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946 (or 1932 counting only the distinct ones).

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

The square root of 211023153 is about 14526.6359835992. The cubic root of 211023153 is about 595.3559558292.

Adding to 211023153 its reverse (351320112), we get a palindrome (562343265).

The spelling of 211023153 in words is "two hundred eleven million, twenty-three thousand, one hundred fifty-three".