31023123213311 has 8 divisors (see below), whose sum is σ = 34276187284704. Its totient is φ = 27928745194240.

The previous prime is 31023123213287. The next prime is 31023123213319. The reversal of 31023123213311 is 11331232132013.

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 31023123213311 - 2³⁰ = 31022049471487 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 (31023123213319) 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, 39671512670 + ... + 39671513451.

It is an arithmetic number, because the mean of its divisors is an integer number (4284523410588).

Almost surely, 2^{31023123213311} is an apocalyptic number.

31023123213311 is a deficient number, since it is larger than the sum of its proper divisors (3253064071393).

31023123213311 is a wasteful number, since it uses less digits than its factorization.

31023123213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79343026161.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31023123213311 its reverse (11331232132013), we get a palindrome (42354355345324).

The spelling of 31023123213311 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-three million, two hundred thirteen thousand, three hundred eleven".