1143636302021 has 2 divisors, whose sum is σ = 1143636302022. Its totient is φ = 1143636302020.

The previous prime is 1143636302009. The next prime is 1143636302047. The reversal of 1143636302021 is 1202036363411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 908618836225 + 235017465796 = 953215^2 + 484786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143636302021 - 2³⁴ = 1126456432837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143638302021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571818151010 + 571818151011.

It is an arithmetic number, because the mean of its divisors is an integer number (571818151011).

Almost surely, 2^{1143636302021} is an apocalyptic number.

It is an amenable number.

1143636302021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143636302021 is an equidigital number, since it uses as much as digits as its factorization.

1143636302021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 1143636302021 in words is "one trillion, one hundred forty-three billion, six hundred thirty-six million, three hundred two thousand, twenty-one".