1000000120020 has 96 divisors (see below), whose sum is σ = 3059297579520. Its totient is φ = 242047148160.

The previous prime is 1000000119991. The next prime is 1000000120037. The reversal of 1000000120020 is 200210000001.

It is a happy number.

1000000120020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 1000000119990 and 1000000120008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 753810 + ... + 1602569.

It is an arithmetic number, because the mean of its divisors is an integer number (31867683120).

Almost surely, 2^{1000000120020} is an apocalyptic number.

1000000120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000000120020 is an abundant number, since it is smaller than the sum of its proper divisors (2059297459500).

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

1000000120020 is a wasteful number, since it uses less digits than its factorization.

1000000120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357045 (or 2357043 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 1000000120020 its reverse (200210000001), we get a palindrome (1200210120021).

The spelling of 1000000120020 in words is "one trillion, one hundred twenty thousand, twenty".