120111011011020 has 96 divisors (see below), whose sum is σ = 347912073270720. Its totient is φ = 30924750115840.

The previous prime is 120111011010979. The next prime is 120111011011039. The reversal of 120111011011020 is 20110110111021.

It is a super-2 number, since 2×120111011011020² (a number of 29 digits) contains 22 as substring.

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 = 120111011010987 and 120111011011005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156308950 + ... + 157075490.

It is an arithmetic number, because the mean of its divisors is an integer number (3624084096570).

Almost surely, 2^{120111011011020} is an apocalyptic number.

120111011011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111011011020 is an abundant number, since it is smaller than the sum of its proper divisors (227801062259700).

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

120111011011020 is a wasteful number, since it uses less digits than its factorization.

120111011011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856635 (or 856633 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 120111011011020 its reverse (20110110111021), we get a palindrome (140221121122041).

The spelling of 120111011011020 in words is "one hundred twenty trillion, one hundred eleven billion, eleven million, eleven thousand, twenty".