31110201311113 has 4 divisors (see below), whose sum is σ = 31222512507460. Its totient is φ = 30997890114768.

The previous prime is 31110201311081. The next prime is 31110201311131. The reversal of 31110201311113 is 31111310201113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20045078071929 + 11065123239184 = 4477173^2 + 3326428^2 .

It is a cyclic number.

It is not a de Polignac number, because 31110201311113 - 2⁵ = 31110201311081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31110201311183) 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, 56155597758 + ... + 56155598311.

It is an arithmetic number, because the mean of its divisors is an integer number (7805628126865).

Almost surely, 2^{31110201311113} is an apocalyptic number.

It is an amenable number.

31110201311113 is a deficient number, since it is larger than the sum of its proper divisors (112311196347).

31110201311113 is a wasteful number, since it uses less digits than its factorization.

31110201311113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112311196346.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 31110201311113 its reverse (31111310201113), we get a palindrome (62221511512226).

Subtracting 31110201311113 from its reverse (31111310201113), we obtain a square (1108890000 = 33300²).

The spelling of 31110201311113 in words is "thirty-one trillion, one hundred ten billion, two hundred one million, three hundred eleven thousand, one hundred thirteen".