231001316 has 96 divisors (see below), whose sum is σ = 529858560. Its totient is φ = 85567104.

The previous prime is 231001313. The next prime is 231001319. The reversal of 231001316 is 613100132.

231001316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231001313) and next prime (231001319).

It is a junction number, because it is equal to n+sod(n) for n = 231001294 and 231001303.

It is not an unprimeable number, because it can be changed into a prime (231001313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 878201 + ... + 878463.

It is an arithmetic number, because the mean of its divisors is an integer number (5519360).

Almost surely, 2^231001316 is an apocalyptic number.

231001316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231001316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264929280).

231001316 is an abundant number, since it is smaller than the sum of its proper divisors (298857244).

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

231001316 is a wasteful number, since it uses less digits than its factorization.

231001316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 231001316 is about 15198.7274467305. The cubic root of 231001316 is about 613.5804091448.

Adding to 231001316 its reverse (613100132), we get a palindrome (844101448).

The spelling of 231001316 in words is "two hundred thirty-one million, one thousand, three hundred sixteen".