211012313 has 4 divisors (see below), whose sum is σ = 223424820. Its totient is φ = 198599808.

The previous prime is 211012303. The next prime is 211012343. The reversal of 211012313 is 313210112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67683529 + 143328784 = 8227^2 + 11972^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012313 - 2⁴ = 211012297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211012303) 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, 6206228 + ... + 6206261.

It is an arithmetic number, because the mean of its divisors is an integer number (55856205).

Almost surely, 2^211012313 is an apocalyptic number.

It is an amenable number.

211012313 is a deficient number, since it is larger than the sum of its proper divisors (12412507).

211012313 is a wasteful number, since it uses less digits than its factorization.

211012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12412506.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 211012313 is about 14526.2628710897. The cubic root of 211012313 is about 595.3457614201.

Adding to 211012313 its reverse (313210112), we get a palindrome (524222425).

The spelling of 211012313 in words is "two hundred eleven million, twelve thousand, three hundred thirteen".