101605722013 has 4 divisors (see below), whose sum is σ = 101898534240. Its totient is φ = 101312909788.

The previous prime is 101605722011. The next prime is 101605722017. The reversal of 101605722013 is 310227506101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101605722013 - 2¹ = 101605722011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101605722011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146405593 + ... + 146406286.

It is an arithmetic number, because the mean of its divisors is an integer number (25474633560).

Almost surely, 2^101605722013 is an apocalyptic number.

It is an amenable number.

101605722013 is a deficient number, since it is larger than the sum of its proper divisors (292812227).

101605722013 is an equidigital number, since it uses as much as digits as its factorization.

101605722013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292812226.

The product of its (nonzero) digits is 2520, while the sum is 28.

The spelling of 101605722013 in words is "one hundred one billion, six hundred five million, seven hundred twenty-two thousand, thirteen".