231322122043 has 4 divisors (see below), whose sum is σ = 231465534768. Its totient is φ = 231178709320.

The previous prime is 231322122029. The next prime is 231322122079. The reversal of 231322122043 is 340221223132.

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 231322122043 - 2⁹ = 231322121531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231322121999 and 231322122017.

It is not an unprimeable number, because it can be changed into a prime (231322122443) 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, 71703943 + ... + 71707168.

It is an arithmetic number, because the mean of its divisors is an integer number (57866383692).

Almost surely, 2^231322122043 is an apocalyptic number.

231322122043 is a deficient number, since it is larger than the sum of its proper divisors (143412725).

231322122043 is a wasteful number, since it uses less digits than its factorization.

231322122043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143412724.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231322122043 its reverse (340221223132), we get a palindrome (571543345175).

The spelling of 231322122043 in words is "two hundred thirty-one billion, three hundred twenty-two million, one hundred twenty-two thousand, forty-three".