1210020010123 has 2 divisors, whose sum is σ = 1210020010124. Its totient is φ = 1210020010122.

The previous prime is 1210020010099. The next prime is 1210020010127. The reversal of 1210020010123 is 3210100200121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210020010123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210020010127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605010005061 + 605010005062.

It is an arithmetic number, because the mean of its divisors is an integer number (605010005062).

Almost surely, 2^{1210020010123} is an apocalyptic number.

1210020010123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210020010123 is an equidigital number, since it uses as much as digits as its factorization.

1210020010123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1210020010123 its reverse (3210100200121), we get a palindrome (4420120210244).

The spelling of 1210020010123 in words is "one trillion, two hundred ten billion, twenty million, ten thousand, one hundred twenty-three".