101421241 has 4 divisors (see below), whose sum is σ = 101443984. Its totient is φ = 101398500.

The previous prime is 101421239. The next prime is 101421289. The reversal of 101421241 is 142124101.

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 101421241 - 2¹ = 101421239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101421941) 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, 2235 + ... + 14416.

It is an arithmetic number, because the mean of its divisors is an integer number (25360996).

Almost surely, 2^101421241 is an apocalyptic number.

It is an amenable number.

101421241 is a deficient number, since it is larger than the sum of its proper divisors (22743).

101421241 is an equidigital number, since it uses as much as digits as its factorization.

101421241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22742.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 101421241 is about 10070.8113377225. The cubic root of 101421241 is about 466.3474862222.

Adding to 101421241 its reverse (142124101), we get a palindrome (243545342).

The spelling of 101421241 in words is "one hundred one million, four hundred twenty-one thousand, two hundred forty-one".