1020040113412 has 24 divisors (see below), whose sum is σ = 1801831927896. Its totient is φ = 505253215488.

The previous prime is 1020040113409. The next prime is 1020040113413. The reversal of 1020040113412 is 2143110400201.

It can be written as a sum of positive squares in 4 ways, for example, as 615195510336 + 404844603076 = 784344^2 + 636274^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020040113412.

It is not an unprimeable number, because it can be changed into a prime (1020040113413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2594223 + ... + 2961430.

It is an arithmetic number, because the mean of its divisors is an integer number (75076330329).

Almost surely, 2^{1020040113412} is an apocalyptic number.

It is an amenable number.

1020040113412 is a deficient number, since it is larger than the sum of its proper divisors (781791814484).

1020040113412 is a wasteful number, since it uses less digits than its factorization.

1020040113412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5556087 (or 5556085 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1020040113412 its reverse (2143110400201), we get a palindrome (3163150513613).

The spelling of 1020040113412 in words is "one trillion, twenty billion, forty million, one hundred thirteen thousand, four hundred twelve".