4103145021 has 4 divisors (see below), whose sum is σ = 5470860032. Its totient is φ = 2735430012.

The previous prime is 4103144993. The next prime is 4103145023. The reversal of 4103145021 is 1205413014.

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 not a de Polignac number, because 4103145021 - 2¹⁰ = 4103143997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4103145023) 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, 683857501 + ... + 683857506.

It is an arithmetic number, because the mean of its divisors is an integer number (1367715008).

Almost surely, 2^4103145021 is an apocalyptic number.

It is an amenable number.

4103145021 is a deficient number, since it is larger than the sum of its proper divisors (1367715011).

4103145021 is a wasteful number, since it uses less digits than its factorization.

4103145021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367715010.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 4103145021 is about 64055.7961546026. The cubic root of 4103145021 is about 1600.9298008404.

Adding to 4103145021 its reverse (1205413014), we get a palindrome (5308558035).

The spelling of 4103145021 in words is "four billion, one hundred three million, one hundred forty-five thousand, twenty-one".