7231113121 has 8 divisors (see below), whose sum is σ = 7285248000. Its totient is φ = 7177148160.

The previous prime is 7231113089. The next prime is 7231113143. The reversal of 7231113121 is 1213111327.

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 7231113121 - 2⁵ = 7231113089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7231113092 and 7231113101.

It is not an unprimeable number, because it can be changed into a prime (7231113151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43600 + ... + 127918.

It is an arithmetic number, because the mean of its divisors is an integer number (910656000).

Almost surely, 2^7231113121 is an apocalyptic number.

It is an amenable number.

7231113121 is a deficient number, since it is larger than the sum of its proper divisors (54134879).

7231113121 is a wasteful number, since it uses less digits than its factorization.

7231113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84959.

The product of its digits is 252, while the sum is 22.

The square root of 7231113121 is about 85035.9519321093. The cubic root of 7231113121 is about 1933.7561971948.

Adding to 7231113121 its reverse (1213111327), we get a palindrome (8444224448).

The spelling of 7231113121 in words is "seven billion, two hundred thirty-one million, one hundred thirteen thousand, one hundred twenty-one".