120010001020 has 48 divisors (see below), whose sum is σ = 310179699648. Its totient is φ = 37981186560.

The previous prime is 120010001003. The next prime is 120010001039. The reversal of 120010001020 is 20100010021.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 120010000994 and 120010001012.

It is a congruent number.

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, 32967961 + ... + 32971600.

It is an arithmetic number, because the mean of its divisors is an integer number (6462077076).

Almost surely, 2^120010001020 is an apocalyptic number.

120010001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120010001020 is an abundant number, since it is smaller than the sum of its proper divisors (190169698628).

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

120010001020 is a wasteful number, since it uses less digits than its factorization.

120010001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65939590 (or 65939588 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 120010001020 its reverse (20100010021), we get a palindrome (140110011041).

Subtracting from 120010001020 its reverse (20100010021), we obtain a palindrome (99909990999).

The spelling of 120010001020 in words is "one hundred twenty billion, ten million, one thousand, twenty".