1020020011111 has 8 divisors (see below), whose sum is σ = 1039286427840. Its totient is φ = 1000754363232.

The previous prime is 1020020011097. The next prime is 1020020011121. The reversal of 1020020011111 is 1111100200201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020020011111 - 2¹⁵ = 1020019978343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020020011121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2974105 + ... + 3299293.

It is an arithmetic number, because the mean of its divisors is an integer number (129910803480).

Almost surely, 2^{1020020011111} is an apocalyptic number.

1020020011111 is a deficient number, since it is larger than the sum of its proper divisors (19266416729).

1020020011111 is an equidigital number, since it uses as much as digits as its factorization.

1020020011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384425.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1020020011111 its reverse (1111100200201), we get a palindrome (2131120211312).

The spelling of 1020020011111 in words is "one trillion, twenty billion, twenty million, eleven thousand, one hundred eleven".