1020212122123 has 2 divisors, whose sum is σ = 1020212122124. Its totient is φ = 1020212122122.

The previous prime is 1020212122109. The next prime is 1020212122177. The reversal of 1020212122123 is 3212212120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020212122123 - 2⁵ = 1020212122091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020212122123.

It is not a weakly prime, because it can be changed into another prime (1020212122103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510106061061 + 510106061062.

It is an arithmetic number, because the mean of its divisors is an integer number (510106061062).

Almost surely, 2^{1020212122123} is an apocalyptic number.

1020212122123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020212122123 is an equidigital number, since it uses as much as digits as its factorization.

1020212122123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1020212122123 its reverse (3212212120201), we get a palindrome (4232424242324).

The spelling of 1020212122123 in words is "one trillion, twenty billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty-three".