211253321 has 8 divisors (see below), whose sum is σ = 220680960. Its totient is φ = 201845952.

The previous prime is 211253311. The next prime is 211253323. The reversal of 211253321 is 123352112.

211253321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211253321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211253293 and 211253302.

It is not an unprimeable number, because it can be changed into a prime (211253323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18656 + ... + 27758.

It is an arithmetic number, because the mean of its divisors is an integer number (27585120).

Almost surely, 2^211253321 is an apocalyptic number.

It is an amenable number.

211253321 is a deficient number, since it is larger than the sum of its proper divisors (9427639).

211253321 is a wasteful number, since it uses less digits than its factorization.

211253321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10135.

The product of its digits is 360, while the sum is 20.

The square root of 211253321 is about 14534.5560991728. The cubic root of 211253321 is about 595.5723335055.

The spelling of 211253321 in words is "two hundred eleven million, two hundred fifty-three thousand, three hundred twenty-one".