1093326640421 has 2 divisors, whose sum is σ = 1093326640422. Its totient is φ = 1093326640420.

The previous prime is 1093326640409. The next prime is 1093326640423. The reversal of 1093326640421 is 1240466233901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091293622500 + 2033017921 = 1044650^2 + 45089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1093326640421 - 2¹⁰ = 1093326639397 is a prime.

Together with 1093326640423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1093326640423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546663320210 + 546663320211.

It is an arithmetic number, because the mean of its divisors is an integer number (546663320211).

Almost surely, 2^{1093326640421} is an apocalyptic number.

It is an amenable number.

1093326640421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093326640421 is an equidigital number, since it uses as much as digits as its factorization.

1093326640421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 1093326640421 in words is "one trillion, ninety-three billion, three hundred twenty-six million, six hundred forty thousand, four hundred twenty-one".