101532121 has 4 divisors (see below), whose sum is σ = 103196644. Its totient is φ = 99867600.

The previous prime is 101532091. The next prime is 101532163. The reversal of 101532121 is 121235101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58446025 + 43086096 = 7645^2 + 6564^2 .

It is a cyclic number.

It is not a de Polignac number, because 101532121 - 2⁷ = 101531993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101532095 and 101532104.

It is not an unprimeable number, because it can be changed into a prime (101532191) 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, 832170 + ... + 832291.

It is an arithmetic number, because the mean of its divisors is an integer number (25799161).

Almost surely, 2^101532121 is an apocalyptic number.

It is an amenable number.

101532121 is a deficient number, since it is larger than the sum of its proper divisors (1664523).

101532121 is an equidigital number, since it uses as much as digits as its factorization.

101532121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664522.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 101532121 is about 10076.3148521669. The cubic root of 101532121 is about 466.5173710067.

Adding to 101532121 its reverse (121235101), we get a palindrome (222767222).

The spelling of 101532121 in words is "one hundred one million, five hundred thirty-two thousand, one hundred twenty-one".