31113213223123 has 8 divisors (see below), whose sum is σ = 33055976771280. Its totient is φ = 29228442616800.

The previous prime is 31113213223109. The next prime is 31113213223151. The reversal of 31113213223123 is 32132231231113.

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 31113213223123 - 2⁴¹ = 28914189967571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31113213223091 and 31113213223100.

It is not an unprimeable number, because it can be changed into a prime (31113213224123) 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, 14498234353 + ... + 14498236498.

It is an arithmetic number, because the mean of its divisors is an integer number (4131997096410).

Almost surely, 2^{31113213223123} is an apocalyptic number.

31113213223123 is a deficient number, since it is larger than the sum of its proper divisors (1942763548157).

31113213223123 is a wasteful number, since it uses less digits than its factorization.

31113213223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28996470917.

The product of its digits is 3888, while the sum is 28.

Adding to 31113213223123 its reverse (32132231231113), we get a palindrome (63245444454236).

The spelling of 31113213223123 in words is "thirty-one trillion, one hundred thirteen billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-three".