1021153243443 has 8 divisors (see below), whose sum is σ = 1361584069056. Its totient is φ = 680745623400.

The previous prime is 1021153243423. The next prime is 1021153243447. The reversal of 1021153243443 is 3443423511201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1021153243443 - 2¹⁰ = 1021153242419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021153243447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5698453 + ... + 5874918.

It is an arithmetic number, because the mean of its divisors is an integer number (170198008632).

Almost surely, 2^{1021153243443} is an apocalyptic number.

1021153243443 is a deficient number, since it is larger than the sum of its proper divisors (340430825613).

1021153243443 is a wasteful number, since it uses less digits than its factorization.

1021153243443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11602785.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 1021153243443 its reverse (3443423511201), we get a palindrome (4464576754644).

The spelling of 1021153243443 in words is "one trillion, twenty-one billion, one hundred fifty-three million, two hundred forty-three thousand, four hundred forty-three".