31113131121110 has 64 divisors (see below), whose sum is σ = 56412607470912. Its totient is φ = 12354660089856.

The previous prime is 31113131121089. The next prime is 31113131121161. The reversal of 31113131121110 is 1112113131113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4161174692 + ... + 4161182168.

It is an arithmetic number, because the mean of its divisors is an integer number (881446991733).

Almost surely, 2^{31113131121110} is an apocalyptic number.

31113131121110 is a deficient number, since it is larger than the sum of its proper divisors (25299476349802).

31113131121110 is a wasteful number, since it uses less digits than its factorization.

31113131121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11937.

The product of its (nonzero) digits is 54, while the sum is 20.

Adding to 31113131121110 its reverse (1112113131113), we get a palindrome (32225244252223).

The spelling of 31113131121110 in words is "thirty-one trillion, one hundred thirteen billion, one hundred thirty-one million, one hundred twenty-one thousand, one hundred ten".