1200030121120 has 24 divisors (see below), whose sum is σ = 2835071161524. Its totient is φ = 480012048384.

The previous prime is 1200030121027. The next prime is 1200030121181. The reversal of 1200030121120 is 211210300021.

It can be written as a sum of positive squares in 2 ways, for example, as 1132240708624 + 67789412496 = 1064068^2 + 260364^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1200030121120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3750093969 + ... + 3750094288.

Almost surely, 2^{1200030121120} is an apocalyptic number.

1200030121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200030121120 is an abundant number, since it is smaller than the sum of its proper divisors (1635041040404).

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

1200030121120 is an equidigital number, since it uses as much as digits as its factorization.

1200030121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500188272 (or 7500188264 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1200030121120 its reverse (211210300021), we get a palindrome (1411240421141).

The spelling of 1200030121120 in words is "one trillion, two hundred billion, thirty million, one hundred twenty-one thousand, one hundred twenty".