101121241 has 4 divisors (see below), whose sum is σ = 108899812. Its totient is φ = 93342672.

The previous prime is 101121203. The next prime is 101121247. The reversal of 101121241 is 142121101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142121101 = 1543 ⋅92107.

It can be written as a sum of positive squares in 2 ways, for example, as 69806025 + 31315216 = 8355^2 + 5596^2 .

It is a cyclic number.

It is not a de Polignac number, because 101121241 - 2¹³ = 101113049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 7778557 = 101121241 / (1 + 0 + 1 + 1 + 2 + 1 + 2 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101121247) 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, 3889266 + ... + 3889291.

It is an arithmetic number, because the mean of its divisors is an integer number (27224953).

Almost surely, 2^101121241 is an apocalyptic number.

It is an amenable number.

101121241 is a deficient number, since it is larger than the sum of its proper divisors (7778571).

101121241 is an equidigital number, since it uses as much as digits as its factorization.

101121241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778570.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 101121241 is about 10055.9057772038. The cubic root of 101121241 is about 465.8872196634.

Adding to 101121241 its reverse (142121101), we get a palindrome (243242342).

The spelling of 101121241 in words is "one hundred one million, one hundred twenty-one thousand, two hundred forty-one".