831801013 has 2 divisors, whose sum is σ = 831801014. Its totient is φ = 831801012.

The previous prime is 831801001. The next prime is 831801029. The reversal of 831801013 is 310108138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 741037284 + 90763729 = 27222^2 + 9527^2 .

It is a cyclic number.

It is not a de Polignac number, because 831801013 - 2²⁹ = 294930101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (831801913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415900506 + 415900507.

It is an arithmetic number, because the mean of its divisors is an integer number (415900507).

Almost surely, 2^831801013 is an apocalyptic number.

It is an amenable number.

831801013 is a deficient number, since it is larger than the sum of its proper divisors (1).

831801013 is an equidigital number, since it uses as much as digits as its factorization.

831801013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 831801013 is about 28840.9606809482. The cubic root of 831801013 is about 940.4588875336.

The spelling of 831801013 in words is "eight hundred thirty-one million, eight hundred one thousand, thirteen".