1020220202123 has 2 divisors, whose sum is σ = 1020220202124. Its totient is φ = 1020220202122.

The previous prime is 1020220202119. The next prime is 1020220202201. The reversal of 1020220202123 is 3212020220201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020220202123 - 2² = 1020220202119 is a prime.

It is not a weakly prime, because it can be changed into another prime (1026220202123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510110101061 + 510110101062.

It is an arithmetic number, because the mean of its divisors is an integer number (510110101062).

Almost surely, 2^{1020220202123} is an apocalyptic number.

1020220202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020220202123 is an equidigital number, since it uses as much as digits as its factorization.

1020220202123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1020220202123 its reverse (3212020220201), we get a palindrome (4232240422324).

The spelling of 1020220202123 in words is "one trillion, twenty billion, two hundred twenty million, two hundred two thousand, one hundred twenty-three".