4245103021 has 8 divisors (see below), whose sum is σ = 4257079200. Its totient is φ = 4233141360.

The previous prime is 4245103019. The next prime is 4245103067. The reversal of 4245103021 is 1203015424.

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

It is a cyclic number.

It is not a de Polignac number, because 4245103021 - 2¹ = 4245103019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4245102983 and 4245103001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245103001) 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 7 ways as a sum of consecutive naturals, for example, 836590 + ... + 841648.

It is an arithmetic number, because the mean of its divisors is an integer number (532134900).

Almost surely, 2^4245103021 is an apocalyptic number.

It is an amenable number.

4245103021 is a deficient number, since it is larger than the sum of its proper divisors (11976179).

4245103021 is a wasteful number, since it uses less digits than its factorization.

4245103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7259.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4245103021 is about 65154.4551124480. The cubic root of 4245103021 is about 1619.1835316985.

Adding to 4245103021 its reverse (1203015424), we get a palindrome (5448118445).

The spelling of 4245103021 in words is "four billion, two hundred forty-five million, one hundred three thousand, twenty-one".