31223013433123 has 8 divisors (see below), whose sum is σ = 31985577360576. Its totient is φ = 30460498411200.

The previous prime is 31223013433069. The next prime is 31223013433133. The reversal of 31223013433123 is 32133431032213.

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 31223013433123 - 2⁴¹ = 29023990177571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31223013433133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10932268 + ... + 13489273.

It is an arithmetic number, because the mean of its divisors is an integer number (3998197170072).

Almost surely, 2^{31223013433123} is an apocalyptic number.

31223013433123 is a deficient number, since it is larger than the sum of its proper divisors (762563927453).

31223013433123 is a wasteful number, since it uses less digits than its factorization.

31223013433123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24452765.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 31223013433123 its reverse (32133431032213), we get a palindrome (63356444465336).

The spelling of 31223013433123 in words is "thirty-one trillion, two hundred twenty-three billion, thirteen million, four hundred thirty-three thousand, one hundred twenty-three".