1020111013020 has 96 divisors (see below), whose sum is σ = 3251452700160. Its totient is φ = 236547477760.

The previous prime is 1020111012953. The next prime is 1020111013049. The reversal of 1020111013020 is 203101110201.

1020111013020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1020111012987 and 1020111013005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33585315 + ... + 33615674.

It is an arithmetic number, because the mean of its divisors is an integer number (33869298960).

Almost surely, 2^{1020111013020} is an apocalyptic number.

1020111013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020111013020 is an abundant number, since it is smaller than the sum of its proper divisors (2231341687140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020111013020 is a wasteful number, since it uses less digits than its factorization.

1020111013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67201035 (or 67201033 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1020111013020 its reverse (203101110201), we get a palindrome (1223212123221).

The spelling of 1020111013020 in words is "one trillion, twenty billion, one hundred eleven million, thirteen thousand, twenty".