1012043120 has 80 divisors (see below), whose sum is σ = 2586798720. Its totient is φ = 365164800.

The previous prime is 1012043117. The next prime is 1012043147. The reversal of 1012043120 is 213402101.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1012043095 and 1012043104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110891 + ... + 119669.

It is an arithmetic number, because the mean of its divisors is an integer number (32334984).

Almost surely, 2^1012043120 is an apocalyptic number.

1012043120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012043120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293399360).

1012043120 is an abundant number, since it is smaller than the sum of its proper divisors (1574755600).

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

1012043120 is a wasteful number, since it uses less digits than its factorization.

1012043120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8934 (or 8928 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1012043120 is about 31812.6251667479. The cubic root of 1012043120 is about 1003.9983651027.

Adding to 1012043120 its reverse (213402101), we get a palindrome (1225445221).

The spelling of 1012043120 in words is "one billion, twelve million, forty-three thousand, one hundred twenty".