1011330012120 has 32 divisors (see below), whose sum is σ = 3033990036720. Its totient is φ = 269688003200.

The previous prime is 1011330012083. The next prime is 1011330012167. The reversal of 1011330012120 is 212100331101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1011330012120.

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, 4213874931 + ... + 4213875170.

Almost surely, 2^{1011330012120} is an apocalyptic number.

1011330012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011330012120 is an abundant number, since it is smaller than the sum of its proper divisors (2022660024600).

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

1011330012120 is a wasteful number, since it uses less digits than its factorization.

1011330012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8427750115 (or 8427750111 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1011330012120 its reverse (212100331101), we get a palindrome (1223430343221).

The spelling of 1011330012120 in words is "one trillion, eleven billion, three hundred thirty million, twelve thousand, one hundred twenty".