3121112220923 has 2 divisors, whose sum is σ = 3121112220924. Its totient is φ = 3121112220922.

The previous prime is 3121112220829. The next prime is 3121112220979. The reversal of 3121112220923 is 3290222111213.

3121112220923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (3290222111213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3121112220923 - 2¹⁸ = 3121111958779 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121112220323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560556110461 + 1560556110462.

It is an arithmetic number, because the mean of its divisors is an integer number (1560556110462).

Almost surely, 2^{3121112220923} is an apocalyptic number.

3121112220923 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121112220923 is an equidigital number, since it uses as much as digits as its factorization.

3121112220923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 3121112220923 in words is "three trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, nine hundred twenty-three".