1043561333412 has 192 divisors, whose sum is σ = 2954985062400. Its totient is φ = 320511603456.

The previous prime is 1043561333377. The next prime is 1043561333429. The reversal of 1043561333412 is 2143331653401.

1043561333412 is a `hidden beast` number, since 1 + 0 + 4 + 3 + 5 + 613 + 3 + 34 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64700893 + ... + 64717019.

It is an arithmetic number, because the mean of its divisors is an integer number (15390547200).

Almost surely, 2^{1043561333412} is an apocalyptic number.

1043561333412 is a gapful number since it is divisible by the number (12) 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 1043561333412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477492531200).

1043561333412 is an abundant number, since it is smaller than the sum of its proper divisors (1911423728988).

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

1043561333412 is a wasteful number, since it uses less digits than its factorization.

1043561333412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16734 (or 16714 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 1043561333412 its reverse (2143331653401), we get a palindrome (3186892986813).

The spelling of 1043561333412 in words is "one trillion, forty-three billion, five hundred sixty-one million, three hundred thirty-three thousand, four hundred twelve".