231914211 has 16 divisors (see below), whose sum is σ = 314778240. Its totient is φ = 151848000.

The previous prime is 231914203. The next prime is 231914227. The reversal of 231914211 is 112419132.

It is not a de Polignac number, because 231914211 - 2³ = 231914203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231913211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52860 + ... + 57078.

It is an arithmetic number, because the mean of its divisors is an integer number (19673640).

Almost surely, 2^231914211 is an apocalyptic number.

231914211 is a deficient number, since it is larger than the sum of its proper divisors (82864029).

231914211 is a wasteful number, since it uses less digits than its factorization.

231914211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546.

The product of its digits is 432, while the sum is 24.

The square root of 231914211 is about 15228.7297894473. The cubic root of 231914211 is about 614.3876170100.

The spelling of 231914211 in words is "two hundred thirty-one million, nine hundred fourteen thousand, two hundred eleven".