231511114 has 8 divisors (see below), whose sum is σ = 347467428. Its totient is φ = 115688640.

The previous prime is 231511087. The next prime is 231511129. The reversal of 231511114 is 411115132.

It can be written as a sum of positive squares in 2 ways, for example, as 211557025 + 19954089 = 14545^2 + 4467^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 231511091 and 231511100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29017 + ... + 36124.

Almost surely, 2^231511114 is an apocalyptic number.

231511114 is a deficient number, since it is larger than the sum of its proper divisors (115956314).

231511114 is a wasteful number, since it uses less digits than its factorization.

231511114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66920.

The product of its digits is 120, while the sum is 19.

The square root of 231511114 is about 15215.4892790209. The cubic root of 231511114 is about 614.0314487671.

Adding to 231511114 its reverse (411115132), we get a palindrome (642626246).

The spelling of 231511114 in words is "two hundred thirty-one million, five hundred eleven thousand, one hundred fourteen".