4131121040321 has 6 divisors (see below), whose sum is σ = 4540818994866. Its totient is φ = 3755564582000.

The previous prime is 4131121040311. The next prime is 4131121040329. The reversal of 4131121040321 is 1230401211314.

It can be written as a sum of positive squares in only one way, i.e., 4128475378225 + 2645662096 = 2031865^2 + 51436^2 .

It is not a de Polignac number, because 4131121040321 - 2⁶ = 4131121040257 is a prime.

It is a super-2 number, since 2×4131121040321² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4131121040329) 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 5 ways as a sum of consecutive naturals, for example, 17070747980 + ... + 17070748221.

It is an arithmetic number, because the mean of its divisors is an integer number (756803165811).

Almost surely, 2^{4131121040321} is an apocalyptic number.

It is an amenable number.

4131121040321 is a deficient number, since it is larger than the sum of its proper divisors (409697954545).

4131121040321 is a wasteful number, since it uses less digits than its factorization.

4131121040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34141496223 (or 34141496212 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 4131121040321 its reverse (1230401211314), we get a palindrome (5361522251635).

The spelling of 4131121040321 in words is "four trillion, one hundred thirty-one billion, one hundred twenty-one million, forty thousand, three hundred twenty-one".