821059352113 has 32 divisors (see below), whose sum is σ = 1102569350400. Its totient is φ = 590482172160.

The previous prime is 821059352107. The next prime is 821059352227. The reversal of 821059352113 is 311253950128.

It is a cyclic number.

It is not a de Polignac number, because 821059352113 - 2⁹ = 821059351601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (821059352513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6896931 + ... + 7014967.

It is an arithmetic number, because the mean of its divisors is an integer number (34455292200).

Almost surely, 2^821059352113 is an apocalyptic number.

It is an amenable number.

821059352113 is a deficient number, since it is larger than the sum of its proper divisors (281509998287).

821059352113 is a wasteful number, since it uses less digits than its factorization.

821059352113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125017.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 821059352113 in words is "eight hundred twenty-one billion, fifty-nine million, three hundred fifty-two thousand, one hundred thirteen".