31111200111323 has 16 divisors (see below), whose sum is σ = 31886824865280. Its totient is φ = 30345172524576.

The previous prime is 31111200111241. The next prime is 31111200111349. The reversal of 31111200111323 is 32311100211113.

It is a cyclic number.

It is not a de Polignac number, because 31111200111323 - 2¹² = 31111200107227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31111200111295 and 31111200111304.

It is not an unprimeable number, because it can be changed into a prime (31111200111353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97848761 + ... + 98166197.

It is an arithmetic number, because the mean of its divisors is an integer number (1992926554080).

Almost surely, 2^{31111200111323} is an apocalyptic number.

31111200111323 is a deficient number, since it is larger than the sum of its proper divisors (775624753957).

31111200111323 is a wasteful number, since it uses less digits than its factorization.

31111200111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332546.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31111200111323 its reverse (32311100211113), we get a palindrome (63422300322436).

The spelling of 31111200111323 in words is "thirty-one trillion, one hundred eleven billion, two hundred million, one hundred eleven thousand, three hundred twenty-three".