101343521 has 4 divisors (see below), whose sum is σ = 101363712. Its totient is φ = 101323332.

The previous prime is 101343461. The next prime is 101343523. The reversal of 101343521 is 125343101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 125343101 = 13 ⋅9641777.

It is a cyclic number.

It is not a de Polignac number, because 101343521 - 2¹⁰ = 101342497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101343493 and 101343502.

It is not an unprimeable number, because it can be changed into a prime (101343523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3920 + ... + 14766.

It is an arithmetic number, because the mean of its divisors is an integer number (25340928).

Almost surely, 2^101343521 is an apocalyptic number.

It is an amenable number.

101343521 is a deficient number, since it is larger than the sum of its proper divisors (20191).

101343521 is an equidigital number, since it uses as much as digits as its factorization.

101343521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20190.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 101343521 is about 10066.9519220070. The cubic root of 101343521 is about 466.2283337042.

Adding to 101343521 its reverse (125343101), we get a palindrome (226686622).

The spelling of 101343521 in words is "one hundred one million, three hundred forty-three thousand, five hundred twenty-one".