1012111022123 has 2 divisors, whose sum is σ = 1012111022124. Its totient is φ = 1012111022122.

The previous prime is 1012111022099. The next prime is 1012111022141. The reversal of 1012111022123 is 3212201112101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012111022123 is a prime.

It is a super-2 number, since 2×1012111022123² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1012111022423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506055511061 + 506055511062.

It is an arithmetic number, because the mean of its divisors is an integer number (506055511062).

Almost surely, 2^{1012111022123} is an apocalyptic number.

1012111022123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012111022123 is an equidigital number, since it uses as much as digits as its factorization.

1012111022123 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 17.

Adding to 1012111022123 its reverse (3212201112101), we get a palindrome (4224312134224).

The spelling of 1012111022123 in words is "one trillion, twelve billion, one hundred eleven million, twenty-two thousand, one hundred twenty-three".