231342433 has 16 divisors (see below), whose sum is σ = 266910336. Its totient is φ = 196416000.

The previous prime is 231342431. The next prime is 231342437. The reversal of 231342433 is 334243132.

It is a cyclic number.

It is not a de Polignac number, because 231342433 - 2¹ = 231342431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231342398 and 231342407.

It is not an unprimeable number, because it can be changed into a prime (231342431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620035 + ... + 620407.

It is an arithmetic number, because the mean of its divisors is an integer number (16681896).

Almost surely, 2^231342433 is an apocalyptic number.

It is an amenable number.

231342433 is a deficient number, since it is larger than the sum of its proper divisors (35567903).

231342433 is a wasteful number, since it uses less digits than its factorization.

231342433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its digits is 5184, while the sum is 25.

The square root of 231342433 is about 15209.9452004273. The cubic root of 231342433 is about 613.8822829919.

Adding to 231342433 its reverse (334243132), we get a palindrome (565585565).

The spelling of 231342433 in words is "two hundred thirty-one million, three hundred forty-two thousand, four hundred thirty-three".