231134413 has 4 divisors (see below), whose sum is σ = 233517340. Its totient is φ = 228751488.

The previous prime is 231134377. The next prime is 231134441. The reversal of 231134413 is 314431132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30713764 + 200420649 = 5542^2 + 14157^2 .

It is a cyclic number.

It is not a de Polignac number, because 231134413 - 2¹⁷ = 231003341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231134443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191318 + ... + 1191511.

It is an arithmetic number, because the mean of its divisors is an integer number (58379335).

Almost surely, 2^231134413 is an apocalyptic number.

It is an amenable number.

231134413 is a deficient number, since it is larger than the sum of its proper divisors (2382927).

231134413 is an equidigital number, since it uses as much as digits as its factorization.

231134413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382926.

The product of its digits is 864, while the sum is 22.

The square root of 231134413 is about 15203.1053735742. The cubic root of 231134413 is about 613.6982295878.

Adding to 231134413 its reverse (314431132), we get a palindrome (545565545).

The spelling of 231134413 in words is "two hundred thirty-one million, one hundred thirty-four thousand, four hundred thirteen".