3121210111093 has 2 divisors, whose sum is σ = 3121210111094. Its totient is φ = 3121210111092.

The previous prime is 3121210111091. The next prime is 3121210111109. The reversal of 3121210111093 is 3901110121213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3000076877329 + 121133233764 = 1732073^2 + 348042^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121210111093 - 2¹ = 3121210111091 is a prime.

Together with 3121210111091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121210111091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560605055546 + 1560605055547.

It is an arithmetic number, because the mean of its divisors is an integer number (1560605055547).

Almost surely, 2^{3121210111093} is an apocalyptic number.

It is an amenable number.

3121210111093 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121210111093 is an equidigital number, since it uses as much as digits as its factorization.

3121210111093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 3121210111093 in words is "three trillion, one hundred twenty-one billion, two hundred ten million, one hundred eleven thousand, ninety-three".