101113521 has 8 divisors (see below), whose sum is σ = 135457824. Its totient is φ = 67089120.

The previous prime is 101113513. The next prime is 101113531. The reversal of 101113521 is 125311101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101113521 - 2³ = 101113513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101113521.

It is not an unprimeable number, because it can be changed into a prime (101113531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79236 + ... + 80501.

It is an arithmetic number, because the mean of its divisors is an integer number (16932228).

Almost surely, 2^101113521 is an apocalyptic number.

It is an amenable number.

101113521 is a deficient number, since it is larger than the sum of its proper divisors (34344303).

101113521 is a wasteful number, since it uses less digits than its factorization.

101113521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159951.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 101113521 is about 10055.5219158431. The cubic root of 101113521 is about 465.8753634638.

Adding to 101113521 its reverse (125311101), we get a palindrome (226424622).

The spelling of 101113521 in words is "one hundred one million, one hundred thirteen thousand, five hundred twenty-one".