31113223133023 has 4 divisors (see below), whose sum is σ = 31113434050560. Its totient is φ = 31113012215488.

The previous prime is 31113223133017. The next prime is 31113223133059. The reversal of 31113223133023 is 32033132231113.

It is a happy number.

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 31113223133023 - 2¹⁷ = 31113223001951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31113223132982 and 31113223133000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113223133063) 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, 105237343 + ... + 105532576.

It is an arithmetic number, because the mean of its divisors is an integer number (7778358512640).

Almost surely, 2^{31113223133023} is an apocalyptic number.

31113223133023 is a deficient number, since it is larger than the sum of its proper divisors (210917537).

31113223133023 is a wasteful number, since it uses less digits than its factorization.

31113223133023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210917536.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 31113223133023 its reverse (32033132231113), we get a palindrome (63146355364136).

The spelling of 31113223133023 in words is "thirty-one trillion, one hundred thirteen billion, two hundred twenty-three million, one hundred thirty-three thousand, twenty-three".