101243121 has 8 divisors (see below), whose sum is σ = 154275264. Its totient is φ = 57853200.

The previous prime is 101243101. The next prime is 101243159. The reversal of 101243121 is 121342101.

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

It is not a de Polignac number, because 101243121 - 2⁶ = 101243057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101243121.

It is not an unprimeable number, because it can be changed into a prime (101243101) 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, 2410530 + ... + 2410571.

It is an arithmetic number, because the mean of its divisors is an integer number (19284408).

Almost surely, 2^101243121 is an apocalyptic number.

It is an amenable number.

101243121 is a deficient number, since it is larger than the sum of its proper divisors (53032143).

101243121 is an equidigital number, since it uses as much as digits as its factorization.

101243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821111.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 101243121 is about 10061.9640726848. The cubic root of 101243121 is about 466.0743202701.

Adding to 101243121 its reverse (121342101), we get a palindrome (222585222).

The spelling of 101243121 in words is "one hundred one million, two hundred forty-three thousand, one hundred twenty-one".