1020121220303 has 2 divisors, whose sum is σ = 1020121220304. Its totient is φ = 1020121220302.

The previous prime is 1020121220179. The next prime is 1020121220323. The reversal of 1020121220303 is 3030221210201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020121220303 - 2²² = 1020117025999 is a prime.

It is a super-2 number, since 2×1020121220303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020121220323) 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, 510060610151 + 510060610152.

It is an arithmetic number, because the mean of its divisors is an integer number (510060610152).

Almost surely, 2^{1020121220303} is an apocalyptic number.

1020121220303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020121220303 is an equidigital number, since it uses as much as digits as its factorization.

1020121220303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1020121220303 its reverse (3030221210201), we get a palindrome (4050342430504).

The spelling of 1020121220303 in words is "one trillion, twenty billion, one hundred twenty-one million, two hundred twenty thousand, three hundred three".