7121123411 has 8 divisors (see below), whose sum is σ = 7550636880. Its totient is φ = 6697081728.

The previous prime is 7121123381. The next prime is 7121123419. The reversal of 7121123411 is 1143211217.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7121123411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7121123419) 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, 1365266 + ... + 1370471.

It is an arithmetic number, because the mean of its divisors is an integer number (943829610).

Almost surely, 2^7121123411 is an apocalyptic number.

7121123411 is a deficient number, since it is larger than the sum of its proper divisors (429513469).

7121123411 is a wasteful number, since it uses less digits than its factorization.

7121123411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735893.

The product of its digits is 336, while the sum is 23.

The square root of 7121123411 is about 84386.7490249506. The cubic root of 7121123411 is about 1923.9015185342.

Adding to 7121123411 its reverse (1143211217), we get a palindrome (8264334628).

The spelling of 7121123411 in words is "seven billion, one hundred twenty-one million, one hundred twenty-three thousand, four hundred eleven".