231675211 has 2 divisors, whose sum is σ = 231675212. Its totient is φ = 231675210.

The previous prime is 231675139. The next prime is 231675217. The reversal of 231675211 is 112576132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231675211 - 2²¹ = 229578059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231675211.

It is not a weakly prime, because it can be changed into another prime (231675217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115837605 + 115837606.

It is an arithmetic number, because the mean of its divisors is an integer number (115837606).

Almost surely, 2^231675211 is an apocalyptic number.

231675211 is a deficient number, since it is larger than the sum of its proper divisors (1).

231675211 is an equidigital number, since it uses as much as digits as its factorization.

231675211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 231675211 is about 15220.8807563820. The cubic root of 231675211 is about 614.1764913665.

The spelling of 231675211 in words is "two hundred thirty-one million, six hundred seventy-five thousand, two hundred eleven".