4101326721 has 12 divisors (see below), whose sum is σ = 6272617572. Its totient is φ = 2573381376.

The previous prime is 4101326717. The next prime is 4101326731. The reversal of 4101326721 is 1276231014.

4101326721 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1477326096 + 2624000625 = 38436^2 + 51225^2 .

It is not a de Polignac number, because 4101326721 - 2² = 4101326717 is a prime.

It is a super-2 number, since 2×4101326721² = 33641761744777223682, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4101326731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13402876 + ... + 13403181.

It is an arithmetic number, because the mean of its divisors is an integer number (522718131).

Almost surely, 2^4101326721 is an apocalyptic number.

It is an amenable number.

4101326721 is a deficient number, since it is larger than the sum of its proper divisors (2171290851).

4101326721 is a wasteful number, since it uses less digits than its factorization.

4101326721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26806080 (or 26806077 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 4101326721 is about 64041.6014868460. The cubic root of 4101326721 is about 1600.6932830193.

Adding to 4101326721 its reverse (1276231014), we get a palindrome (5377557735).

The spelling of 4101326721 in words is "four billion, one hundred one million, three hundred twenty-six thousand, seven hundred twenty-one".