1020020111011 has 16 divisors (see below), whose sum is σ = 1114020864000. Its totient is φ = 926231905600.

The previous prime is 1020020110973. The next prime is 1020020111053. The reversal of 1020020111011 is 1101110200201.

It is a cyclic number.

It is not a de Polignac number, because 1020020111011 - 2¹⁵ = 1020020078243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020020111911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38625390 + ... + 38651788.

It is an arithmetic number, because the mean of its divisors is an integer number (69626304000).

Almost surely, 2^{1020020111011} is an apocalyptic number.

1020020111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1020020111011 is a deficient number, since it is larger than the sum of its proper divisors (94000752989).

1020020111011 is a wasteful number, since it uses less digits than its factorization.

1020020111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30290.

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

Adding to 1020020111011 its reverse (1101110200201), we get a palindrome (2121130311212).

It can be divided in two parts, 10200201 and 11011, that multiplied together give a palindrome (112314413211).

The spelling of 1020020111011 in words is "one trillion, twenty billion, twenty million, one hundred eleven thousand, eleven".