31112112329 has 8 divisors (see below), whose sum is σ = 31622228352. Its totient is φ = 30605997600.

The previous prime is 31112112319. The next prime is 31112112359. The reversal of 31112112329 is 92321121113.

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

It is a cyclic number.

It is not a de Polignac number, because 31112112329 - 2¹² = 31112108233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31112112298 and 31112112307.

It is not an unprimeable number, because it can be changed into a prime (31112112319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984644 + ... + 1015749.

It is an arithmetic number, because the mean of its divisors is an integer number (3952778544).

Almost surely, 2^31112112329 is an apocalyptic number.

It is an amenable number.

31112112329 is a deficient number, since it is larger than the sum of its proper divisors (510116023).

31112112329 is a wasteful number, since it uses less digits than its factorization.

31112112329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000647.

The product of its digits is 648, while the sum is 26.

The spelling of 31112112329 in words is "thirty-one billion, one hundred twelve million, one hundred twelve thousand, three hundred twenty-nine".