1013320221293 has 2 divisors, whose sum is σ = 1013320221294. Its totient is φ = 1013320221292.

The previous prime is 1013320221289. The next prime is 1013320221337. The reversal of 1013320221293 is 3921220233101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971874590569 + 41445630724 = 985837^2 + 203582^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013320221293 - 2² = 1013320221289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013320221253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506660110646 + 506660110647.

It is an arithmetic number, because the mean of its divisors is an integer number (506660110647).

Almost surely, 2^{1013320221293} is an apocalyptic number.

It is an amenable number.

1013320221293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013320221293 is an equidigital number, since it uses as much as digits as its factorization.

1013320221293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 1013320221293 its reverse (3921220233101), we get a palindrome (4934540454394).

The spelling of 1013320221293 in words is "one trillion, thirteen billion, three hundred twenty million, two hundred twenty-one thousand, two hundred ninety-three".