801331313 has 2 divisors, whose sum is σ = 801331314. Its totient is φ = 801331312.

The previous prime is 801331291. The next prime is 801331343. The reversal of 801331313 is 313133108.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 733976464 + 67354849 = 27092^2 + 8207^2 .

It is a cyclic number.

It is not a de Polignac number, because 801331313 - 2¹⁴ = 801314929 is a prime.

It is not a weakly prime, because it can be changed into another prime (801331343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400665656 + 400665657.

It is an arithmetic number, because the mean of its divisors is an integer number (400665657).

Almost surely, 2^801331313 is an apocalyptic number.

It is an amenable number.

801331313 is a deficient number, since it is larger than the sum of its proper divisors (1).

801331313 is an equidigital number, since it uses as much as digits as its factorization.

801331313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 801331313 is about 28307.7959756672. The cubic root of 801331313 is about 928.8324319657.

The spelling of 801331313 in words is "eight hundred one million, three hundred thirty-one thousand, three hundred thirteen".