3121020043223 has 2 divisors, whose sum is σ = 3121020043224. Its totient is φ = 3121020043222.

The previous prime is 3121020043187. The next prime is 3121020043243. The reversal of 3121020043223 is 3223400201213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3121020043223 - 2⁴⁰ = 2021508415447 is a prime.

It is a super-2 number, since 2×3121020043223² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121020043243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560510021611 + 1560510021612.

It is an arithmetic number, because the mean of its divisors is an integer number (1560510021612).

Almost surely, 2^{3121020043223} is an apocalyptic number.

3121020043223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121020043223 is an equidigital number, since it uses as much as digits as its factorization.

3121020043223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 3121020043223 its reverse (3223400201213), we get a palindrome (6344420244436).

The spelling of 3121020043223 in words is "three trillion, one hundred twenty-one billion, twenty million, forty-three thousand, two hundred twenty-three".