113520206321 has 2 divisors, whose sum is σ = 113520206322. Its totient is φ = 113520206320.

The previous prime is 113520206311. The next prime is 113520206389. The reversal of 113520206321 is 123602025311.

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., 64191796321 + 49328410000 = 253361^2 + 222100^2 .

It is an emirp because it is prime and its reverse (123602025311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113520206321 - 2¹⁸ = 113519944177 is a prime.

It is not a weakly prime, because it can be changed into another prime (113520206311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56760103160 + 56760103161.

It is an arithmetic number, because the mean of its divisors is an integer number (56760103161).

Almost surely, 2^113520206321 is an apocalyptic number.

It is an amenable number.

113520206321 is a deficient number, since it is larger than the sum of its proper divisors (1).

113520206321 is an equidigital number, since it uses as much as digits as its factorization.

113520206321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 113520206321 in words is "one hundred thirteen billion, five hundred twenty million, two hundred six thousand, three hundred twenty-one".