1210020002123 has 2 divisors, whose sum is σ = 1210020002124. Its totient is φ = 1210020002122.

The previous prime is 1210020002119. The next prime is 1210020002131. The reversal of 1210020002123 is 3212000200121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210020002123 - 2² = 1210020002119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210020002098 and 1210020002107.

It is not a weakly prime, because it can be changed into another prime (1210020002173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605010001061 + 605010001062.

It is an arithmetic number, because the mean of its divisors is an integer number (605010001062).

Almost surely, 2^{1210020002123} is an apocalyptic number.

1210020002123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210020002123 is an equidigital number, since it uses as much as digits as its factorization.

1210020002123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1210020002123 its reverse (3212000200121), we get a palindrome (4422020202244).

The spelling of 1210020002123 in words is "one trillion, two hundred ten billion, twenty million, two thousand, one hundred twenty-three".