31311121301233 has 8 divisors (see below), whose sum is σ = 31978305007488. Its totient is φ = 30643978829904.

The previous prime is 31311121301231. The next prime is 31311121301237. The reversal of 31311121301233 is 33210312111313.

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 31311121301233 - 2¹ = 31311121301231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31311121301198 and 31311121301207.

It is not an unprimeable number, because it can be changed into a prime (31311121301231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8771466 + ... + 11813587.

It is an arithmetic number, because the mean of its divisors is an integer number (3997288125936).

Almost surely, 2^{31311121301233} is an apocalyptic number.

It is an amenable number.

31311121301233 is a deficient number, since it is larger than the sum of its proper divisors (667183706255).

31311121301233 is a wasteful number, since it uses less digits than its factorization.

31311121301233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20617463.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 31311121301233 its reverse (33210312111313), we get a palindrome (64521433412546).

The spelling of 31311121301233 in words is "thirty-one trillion, three hundred eleven billion, one hundred twenty-one million, three hundred one thousand, two hundred thirty-three".