31233343124243 has 4 divisors (see below), whose sum is σ = 33635907979968. Its totient is φ = 28830778268520.

The previous prime is 31233343124237. The next prime is 31233343124257. The reversal of 31233343124243 is 34242134333213.

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 31233343124243 - 2⁸ = 31233343123987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31233343124197 and 31233343124206.

It is not an unprimeable number, because it can be changed into a prime (31233343154243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201282427843 + ... + 1201282427868.

It is an arithmetic number, because the mean of its divisors is an integer number (8408976994992).

Almost surely, 2^{31233343124243} is an apocalyptic number.

31233343124243 is a deficient number, since it is larger than the sum of its proper divisors (2402564855725).

31233343124243 is a wasteful number, since it uses less digits than its factorization.

31233343124243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402564855724.

The product of its digits is 373248, while the sum is 38.

Adding to 31233343124243 its reverse (34242134333213), we get a palindrome (65475477457456).

The spelling of 31233343124243 in words is "thirty-one trillion, two hundred thirty-three billion, three hundred forty-three million, one hundred twenty-four thousand, two hundred forty-three".