231687411 has 12 divisors (see below), whose sum is σ = 310507848. Its totient is φ = 153666624.

The previous prime is 231687371. The next prime is 231687427. The reversal of 231687411 is 114786132.

It is not a de Polignac number, because 231687411 - 2⁹ = 231686899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231687481) 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 11 ways as a sum of consecutive naturals, for example, 148411 + ... + 149963.

It is an arithmetic number, because the mean of its divisors is an integer number (25875654).

Almost surely, 2^231687411 is an apocalyptic number.

231687411 is a deficient number, since it is larger than the sum of its proper divisors (78820437).

231687411 is an equidigital number, since it uses as much as digits as its factorization.

231687411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1779 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 231687411 is about 15221.2815163507. The cubic root of 231687411 is about 614.1872720073.

The spelling of 231687411 in words is "two hundred thirty-one million, six hundred eighty-seven thousand, four hundred eleven".