231502116 has 12 divisors (see below), whose sum is σ = 540171632. Its totient is φ = 77167368.

The previous prime is 231502111. The next prime is 231502121. The reversal of 231502116 is 611205132.

It is an interprime number because it is at equal distance from previous prime (231502111) and next prime (231502121).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 231502092 and 231502101.

It is not an unprimeable number, because it can be changed into a prime (231502111) by changing a digit.

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, 9645910 + ... + 9645933.

Almost surely, 2^231502116 is an apocalyptic number.

It is an amenable number.

231502116 is an abundant number, since it is smaller than the sum of its proper divisors (308669516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231502116 is a wasteful number, since it uses less digits than its factorization.

231502116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19291850 (or 19291848 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 231502116 is about 15215.1935906186. The cubic root of 231502116 is about 614.0234936032.

Adding to 231502116 its reverse (611205132), we get a palindrome (842707248).

The spelling of 231502116 in words is "two hundred thirty-one million, five hundred two thousand, one hundred sixteen".