31103020321999 has 8 divisors (see below), whose sum is σ = 31155875355488. Its totient is φ = 31050196339680.

The previous prime is 31103020321991. The next prime is 31103020322041. The reversal of 31103020321999 is 99912302030113.

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 31103020321999 - 2³ = 31103020321991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103020321991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5757312 + ... + 9764869.

It is an arithmetic number, because the mean of its divisors is an integer number (3894484419436).

Almost surely, 2^{31103020321999} is an apocalyptic number.

31103020321999 is a deficient number, since it is larger than the sum of its proper divisors (52855033489).

31103020321999 is a wasteful number, since it uses less digits than its factorization.

31103020321999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15525585.

The product of its (nonzero) digits is 78732, while the sum is 43.

The spelling of 31103020321999 in words is "thirty-one trillion, one hundred three billion, twenty million, three hundred twenty-one thousand, nine hundred ninety-nine".