1001010000120 has 64 divisors (see below), whose sum is σ = 3234032313120. Its totient is φ = 246402461184.

The previous prime is 1001010000083. The next prime is 1001010000127. The reversal of 1001010000120 is 210000101001.

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 = 1001010000099 and 1001010000108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001010000127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320834979 + ... + 320838098.

Almost surely, 2^{1001010000120} is an apocalyptic number.

1001010000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001010000120 is an abundant number, since it is smaller than the sum of its proper divisors (2233022313000).

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

1001010000120 is a wasteful number, since it uses less digits than its factorization.

1001010000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641673104 (or 641673100 counting only the distinct ones).

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

Adding to 1001010000120 its reverse (210000101001), we get a palindrome (1211010101121).

The spelling of 1001010000120 in words is "one trillion, one billion, ten million, one hundred twenty", and thus it is an aban number.