1020011110120 has 64 divisors (see below), whose sum is σ = 2304891832320. Its totient is φ = 406251884544.

The previous prime is 1020011110051. The next prime is 1020011110177. The reversal of 1020011110120 is 210111100201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1020011110097 and 1020011110106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22205817 + ... + 22251703.

It is an arithmetic number, because the mean of its divisors is an integer number (36013934880).

Almost surely, 2^{1020011110120} is an apocalyptic number.

1020011110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020011110120 is an abundant number, since it is smaller than the sum of its proper divisors (1284880722200).

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

1020011110120 is a wasteful number, since it uses less digits than its factorization.

1020011110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48274 (or 48270 counting only the distinct ones).

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

Adding to 1020011110120 its reverse (210111100201), we get a palindrome (1230122210321).

It can be divided in two parts, 102001 and 1110120, that added together give a palindrome (1212121).

The spelling of 1020011110120 in words is "one trillion, twenty billion, eleven million, one hundred ten thousand, one hundred twenty".