231402043 has 8 divisors (see below), whose sum is σ = 234916848. Its totient is φ = 227896704.

The previous prime is 231402037. The next prime is 231402053. The reversal of 231402043 is 340204132.

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

It is a cyclic number.

It is not a de Polignac number, because 231402043 - 2¹⁷ = 231270971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231402043.

It is not an unprimeable number, because it can be changed into a prime (231402013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58455 + ... + 62287.

It is an arithmetic number, because the mean of its divisors is an integer number (29364606).

Almost surely, 2^231402043 is an apocalyptic number.

231402043 is a deficient number, since it is larger than the sum of its proper divisors (3514805).

231402043 is an equidigital number, since it uses as much as digits as its factorization.

231402043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 231402043 is about 15211.9046473477. The cubic root of 231402043 is about 613.9350048090.

Adding to 231402043 its reverse (340204132), we get a palindrome (571606175).

The spelling of 231402043 in words is "two hundred thirty-one million, four hundred two thousand, forty-three".