1043153421543 has 40 divisors (see below), whose sum is σ = 1586289497760. Its totient is φ = 682975696320.

The previous prime is 1043153421493. The next prime is 1043153421587. The reversal of 1043153421543 is 3451243513401.

1043153421543 is a `hidden beast` number, since 1 + 0 + 43 + 1 + 53 + 4 + 21 + 543 = 666.

It is not a de Polignac number, because 1043153421543 - 2¹⁴ = 1043153405159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1043153421498 and 1043153421507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043153421143) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 3033673 + ... + 3359981.

It is an arithmetic number, because the mean of its divisors is an integer number (39657237444).

Almost surely, 2^{1043153421543} is an apocalyptic number.

1043153421543 is a deficient number, since it is larger than the sum of its proper divisors (543136076217).

1043153421543 is an equidigital number, since it uses as much as digits as its factorization.

1043153421543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327029 (or 327020 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 1043153421543 its reverse (3451243513401), we get a palindrome (4494396934944).

The spelling of 1043153421543 in words is "one trillion, forty-three billion, one hundred fifty-three million, four hundred twenty-one thousand, five hundred forty-three".