1040123010120 has 128 divisors (see below), whose sum is σ = 3144450291840. Its totient is φ = 275227269120.

The previous prime is 1040123010119. The next prime is 1040123010139. The reversal of 1040123010120 is 210103210401.

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 1040123010120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44096730 + ... + 44120310.

It is an arithmetic number, because the mean of its divisors is an integer number (24566017905).

Almost surely, 2^{1040123010120} is an apocalyptic number.

1040123010120 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 1040123010120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572225145920).

1040123010120 is an abundant number, since it is smaller than the sum of its proper divisors (2104327281720).

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

1040123010120 is a wasteful number, since it uses less digits than its factorization.

1040123010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415 (or 26411 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1040123010120 its reverse (210103210401), we get a palindrome (1250226220521).

The spelling of 1040123010120 in words is "one trillion, forty billion, one hundred twenty-three million, ten thousand, one hundred twenty".