231243023421335 has 4 divisors (see below), whose sum is σ = 277491628105608. Its totient is φ = 184994418737064.

The previous prime is 231243023421331. The next prime is 231243023421349. The reversal of 231243023421335 is 533124320342132.

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

It is a cyclic number.

It is not a de Polignac number, because 231243023421335 - 2² = 231243023421331 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 (231243023421331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23124302342129 + ... + 23124302342138.

It is an arithmetic number, because the mean of its divisors is an integer number (69372907026402).

Almost surely, 2^{231243023421335} is an apocalyptic number.

231243023421335 is a deficient number, since it is larger than the sum of its proper divisors (46248604684273).

231243023421335 is an equidigital number, since it uses as much as digits as its factorization.

231243023421335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46248604684272.

The product of its (nonzero) digits is 311040, while the sum is 38.

Adding to 231243023421335 its reverse (533124320342132), we get a palindrome (764367343763467).

The spelling of 231243023421335 in words is "two hundred thirty-one trillion, two hundred forty-three billion, twenty-three million, four hundred twenty-one thousand, three hundred thirty-five".