31033013211223 has 4 divisors (see below), whose sum is σ = 31034375346688. Its totient is φ = 31031651075760.

The previous prime is 31033013211163. The next prime is 31033013211259. The reversal of 31033013211223 is 32211231033013.

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 31033013211223 - 2¹⁷ = 31033013080151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31033013211293) 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, 681033558 + ... + 681079123.

It is an arithmetic number, because the mean of its divisors is an integer number (7758593836672).

Almost surely, 2^{31033013211223} is an apocalyptic number.

31033013211223 is a deficient number, since it is larger than the sum of its proper divisors (1362135465).

31033013211223 is a wasteful number, since it uses less digits than its factorization.

31033013211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362135464.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31033013211223 its reverse (32211231033013), we get a palindrome (63244244244236).

The spelling of 31033013211223 in words is "thirty-one trillion, thirty-three billion, thirteen million, two hundred eleven thousand, two hundred twenty-three".