1020121001027 has 2 divisors, whose sum is σ = 1020121001028. Its totient is φ = 1020121001026.

The previous prime is 1020121000949. The next prime is 1020121001059. The reversal of 1020121001027 is 7201001210201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020121001027 - 2⁸ = 1020121000771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020121000996 and 1020121001014.

It is not a weakly prime, because it can be changed into another prime (1020121001327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510060500513 + 510060500514.

It is an arithmetic number, because the mean of its divisors is an integer number (510060500514).

Almost surely, 2^{1020121001027} is an apocalyptic number.

1020121001027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020121001027 is an equidigital number, since it uses as much as digits as its factorization.

1020121001027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 1020121001027 its reverse (7201001210201), we get a palindrome (8221122211228).

The spelling of 1020121001027 in words is "one trillion, twenty billion, one hundred twenty-one million, one thousand, twenty-seven".