31110110323309 has 2 divisors, whose sum is σ = 31110110323310. Its totient is φ = 31110110323308.

The previous prime is 31110110323273. The next prime is 31110110323333. The reversal of 31110110323309 is 90332301101113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26013366108900 + 5096744214409 = 5100330^2 + 2257597^2 .

It is an emirp because it is prime and its reverse (90332301101113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31110110323309 - 2¹³ = 31110110315117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31110110323709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15555055161654 + 15555055161655.

It is an arithmetic number, because the mean of its divisors is an integer number (15555055161655).

Almost surely, 2^{31110110323309} is an apocalyptic number.

It is an amenable number.

31110110323309 is a deficient number, since it is larger than the sum of its proper divisors (1).

31110110323309 is an equidigital number, since it uses as much as digits as its factorization.

31110110323309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The spelling of 31110110323309 in words is "thirty-one trillion, one hundred ten billion, one hundred ten million, three hundred twenty-three thousand, three hundred nine".