1143544006021 has 4 divisors (see below), whose sum is σ = 1148672006272. Its totient is φ = 1138416005772.

The previous prime is 1143544006019. The next prime is 1143544006043. The reversal of 1143544006021 is 1206004453411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1143544006021 - 2¹ = 1143544006019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143544006081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563999791 + ... + 2564000236.

It is an arithmetic number, because the mean of its divisors is an integer number (287168001568).

Almost surely, 2^{1143544006021} is an apocalyptic number.

It is an amenable number.

1143544006021 is a deficient number, since it is larger than the sum of its proper divisors (5128000251).

1143544006021 is an equidigital number, since it uses as much as digits as its factorization.

1143544006021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128000250.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 1143544006021 its reverse (1206004453411), we get a palindrome (2349548459432).

The spelling of 1143544006021 in words is "one trillion, one hundred forty-three billion, five hundred forty-four million, six thousand, twenty-one".