1001000010120 has 64 divisors (see below), whose sum is σ = 3276000037440. Its totient is φ = 242666668800.

The previous prime is 1001000010119. The next prime is 1001000010149. The reversal of 1001000010120 is 210100001001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 1001000010099 and 1001000010108.

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, 379165351 + ... + 379167990.

It is an arithmetic number, because the mean of its divisors is an integer number (51187500585).

Almost surely, 2^{1001000010120} is an apocalyptic number.

1001000010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001000010120 is an abundant number, since it is smaller than the sum of its proper divisors (2275000027320).

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

1001000010120 is a wasteful number, since it uses less digits than its factorization.

1001000010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758333366 (or 758333362 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 1001000010120 its reverse (210100001001), we get a palindrome (1211100011121).

The spelling of 1001000010120 in words is "one trillion, one billion, ten thousand, one hundred twenty".