100020001000120 has 32 divisors (see below), whose sum is σ = 225184868773200. Its totient is φ = 39983135240448.

The previous prime is 100020001000103. The next prime is 100020001000159. The reversal of 100020001000120 is 21000100020001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776971074 + ... + 777099793.

Almost surely, 2^{100020001000120} is an apocalyptic number.

100020001000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020001000120 is an abundant number, since it is smaller than the sum of its proper divisors (125164867773080).

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

100020001000120 is a wasteful number, since it uses less digits than its factorization.

100020001000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554072487 (or 1554072483 counting only the distinct ones).

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

Adding to 100020001000120 its reverse (21000100020001), we get a palindrome (121020101020121).

The spelling of 100020001000120 in words is "one hundred trillion, twenty billion, one million, one hundred twenty", and thus it is an aban number.