7231040121 has 16 divisors (see below), whose sum is σ = 10152833600. Its totient is φ = 4565170368.

The previous prime is 7231040051. The next prime is 7231040123. The reversal of 7231040121 is 1210401327.

It is not a de Polignac number, because 7231040121 - 2⁷ = 7231039993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7231040123) 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 15 ways as a sum of consecutive naturals, for example, 128895 + ... + 176283.

It is an arithmetic number, because the mean of its divisors is an integer number (634552100).

Almost surely, 2^7231040121 is an apocalyptic number.

It is an amenable number.

7231040121 is a deficient number, since it is larger than the sum of its proper divisors (2921793479).

7231040121 is a wasteful number, since it uses less digits than its factorization.

7231040121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50088.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 7231040121 is about 85035.5227008102. The cubic root of 7231040121 is about 1933.7496899128.

Adding to 7231040121 its reverse (1210401327), we get a palindrome (8441441448).

The spelling of 7231040121 in words is "seven billion, two hundred thirty-one million, forty thousand, one hundred twenty-one".