1013321213 has 2 divisors, whose sum is σ = 1013321214. Its totient is φ = 1013321212.

The previous prime is 1013321173. The next prime is 1013321233. The reversal of 1013321213 is 3121233101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643028164 + 370293049 = 25358^2 + 19243^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013321213 - 2¹² = 1013317117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1013321191 and 1013321200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013321233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506660606 + 506660607.

It is an arithmetic number, because the mean of its divisors is an integer number (506660607).

Almost surely, 2^1013321213 is an apocalyptic number.

It is an amenable number.

1013321213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013321213 is an equidigital number, since it uses as much as digits as its factorization.

1013321213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1013321213 is about 31832.7066552626. The cubic root of 1013321213 is about 1004.4208317798.

Adding to 1013321213 its reverse (3121233101), we get a palindrome (4134554314).

The spelling of 1013321213 in words is "one billion, thirteen million, three hundred twenty-one thousand, two hundred thirteen".