1021144101 has 4 divisors (see below), whose sum is σ = 1361525472. Its totient is φ = 680762732.

The previous prime is 1021144099. The next prime is 1021144109. The reversal of 1021144101 is 1014411201.

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: 1014411201 = 3 ⋅338137067.

It is a cyclic number.

It is not a de Polignac number, because 1021144101 - 2¹ = 1021144099 is a prime.

It is a super-3 number, since 3×1021144101³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021144109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170190681 + ... + 170190686.

It is an arithmetic number, because the mean of its divisors is an integer number (340381368).

Almost surely, 2^1021144101 is an apocalyptic number.

It is an amenable number.

1021144101 is a deficient number, since it is larger than the sum of its proper divisors (340381371).

1021144101 is an equidigital number, since it uses as much as digits as its factorization.

1021144101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340381370.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1021144101 is about 31955.3454213845. The cubic root of 1021144101 is about 1006.9989343042.

Adding to 1021144101 its reverse (1014411201), we get a palindrome (2035555302).

The spelling of 1021144101 in words is "one billion, twenty-one million, one hundred forty-four thousand, one hundred one".