2110312231021 has 2 divisors, whose sum is σ = 2110312231022. Its totient is φ = 2110312231020.

The previous prime is 2110312230947. The next prime is 2110312231043. The reversal of 2110312231021 is 1201322130112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2067355108900 + 42957122121 = 1437830^2 + 207261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110312231021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2110312231021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110312231051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055156115510 + 1055156115511.

It is an arithmetic number, because the mean of its divisors is an integer number (1055156115511).

Almost surely, 2^{2110312231021} is an apocalyptic number.

It is an amenable number.

2110312231021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110312231021 is an equidigital number, since it uses as much as digits as its factorization.

2110312231021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2110312231021 its reverse (1201322130112), we get a palindrome (3311634361133).

The spelling of 2110312231021 in words is "two trillion, one hundred ten billion, three hundred twelve million, two hundred thirty-one thousand, twenty-one".