1020020201111 has 4 divisors (see below), whose sum is σ = 1020116467272. Its totient is φ = 1019923934952.

The previous prime is 1020020201087. The next prime is 1020020201113. The reversal of 1020020201111 is 1111020200201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020020201111 - 2¹⁴ = 1020020184727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020020201092 and 1020020201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020020201113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48117185 + ... + 48138378.

It is an arithmetic number, because the mean of its divisors is an integer number (255029116818).

Almost surely, 2^{1020020201111} is an apocalyptic number.

1020020201111 is a deficient number, since it is larger than the sum of its proper divisors (96266161).

1020020201111 is an equidigital number, since it uses as much as digits as its factorization.

1020020201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96266160.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020020201111 its reverse (1111020200201), we get a palindrome (2131040401312).

The spelling of 1020020201111 in words is "one trillion, twenty billion, twenty million, two hundred one thousand, one hundred eleven".