31223234420043 has 16 divisors (see below), whose sum is σ = 42212028249600. Its totient is φ = 20526775224480.

The previous prime is 31223234420033. The next prime is 31223234420047. The reversal of 31223234420043 is 34002443232213.

It is not a de Polignac number, because 31223234420043 - 2¹⁰ = 31223234419019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31223234419986 and 31223234420013.

It is not an unprimeable number, because it can be changed into a prime (31223234420047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226196163 + ... + 226334156.

It is an arithmetic number, because the mean of its divisors is an integer number (2638251765600).

Almost surely, 2^{31223234420043} is an apocalyptic number.

31223234420043 is a deficient number, since it is larger than the sum of its proper divisors (10988793829557).

31223234420043 is a wasteful number, since it uses less digits than its factorization.

31223234420043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452530642.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 31223234420043 its reverse (34002443232213), we get a palindrome (65225677652256).

The spelling of 31223234420043 in words is "thirty-one trillion, two hundred twenty-three billion, two hundred thirty-four million, four hundred twenty thousand, forty-three".