120100001101020 has 72 divisors (see below), whose sum is σ = 365657624317440. Its totient is φ = 31907608705920.

The previous prime is 120100001101007. The next prime is 120100001101027. The reversal of 120100001101020 is 20101100001021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120100001100993 and 120100001101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100001101027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1240141596 + ... + 1240238435.

It is an arithmetic number, because the mean of its divisors is an integer number (5078578115520).

Almost surely, 2^{120100001101020} is an apocalyptic number.

120100001101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120100001101020 is an abundant number, since it is smaller than the sum of its proper divisors (245557623216420).

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

120100001101020 is a wasteful number, since it uses less digits than its factorization.

120100001101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480380315 (or 2480380310 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120100001101020 its reverse (20101100001021), we get a palindrome (140201101102041).

The spelling of 120100001101020 in words is "one hundred twenty trillion, one hundred billion, one million, one hundred one thousand, twenty".