31021104109 has 8 divisors (see below), whose sum is σ = 31348114560. Its totient is φ = 30694240896.

The previous prime is 31021104073. The next prime is 31021104119. The reversal of 31021104109 is 90140112013.

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 31021104109 - 2¹⁷ = 31020973037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31021104109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31021104119) 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, 415932 + ... + 484810.

It is an arithmetic number, because the mean of its divisors is an integer number (3918514320).

Almost surely, 2^31021104109 is an apocalyptic number.

It is an amenable number.

31021104109 is a deficient number, since it is larger than the sum of its proper divisors (327010451).

31021104109 is an equidigital number, since it uses as much as digits as its factorization.

31021104109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73619.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 31021104109 in words is "thirty-one billion, twenty-one million, one hundred four thousand, one hundred nine".