31112200111130 has 8 divisors (see below), whose sum is σ = 56001960200052. Its totient is φ = 12444880044448.

The previous prime is 31112200111127. The next prime is 31112200111141. The reversal of 31112200111130 is 3111100221113.

It can be written as a sum of positive squares in 2 ways, for example, as 30218867014561 + 893333096569 = 5497169^2 + 945163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31112200111099 and 31112200111108.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1555610005547 + ... + 1555610005566.

Almost surely, 2^{31112200111130} is an apocalyptic number.

31112200111130 is a deficient number, since it is larger than the sum of its proper divisors (24889760088922).

31112200111130 is a wasteful number, since it uses less digits than its factorization.

31112200111130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111220011120.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 31112200111130 its reverse (3111100221113), we get a palindrome (34223300332243).

The spelling of 31112200111130 in words is "thirty-one trillion, one hundred twelve billion, two hundred million, one hundred eleven thousand, one hundred thirty".