31100003231113 has 4 divisors (see below), whose sum is σ = 31100239654420. Its totient is φ = 31099766807808.

The previous prime is 31100003231069. The next prime is 31100003231117. The reversal of 31100003231113 is 31113230000113.

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 21308536157689 + 9791467073424 = 4616117^2 + 3129132^2 .

It is a cyclic number.

It is not a de Polignac number, because 31100003231113 - 2¹⁷ = 31100003100041 is a prime.

It is a super-3 number, since 3×31100003231113³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31100003231117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118014228 + ... + 118277461.

It is an arithmetic number, because the mean of its divisors is an integer number (7775059913605).

Almost surely, 2^{31100003231113} is an apocalyptic number.

It is an amenable number.

31100003231113 is a deficient number, since it is larger than the sum of its proper divisors (236423307).

31100003231113 is a wasteful number, since it uses less digits than its factorization.

31100003231113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236423306.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31100003231113 its reverse (31113230000113), we get a palindrome (62213233231226).

The spelling of 31100003231113 in words is "thirty-one trillion, one hundred billion, three million, two hundred thirty-one thousand, one hundred thirteen".