7113711121 has 6 divisors (see below), whose sum is σ = 7819203266. Its totient is φ = 6467010000.

The previous prime is 7113711119. The next prime is 7113711127. The reversal of 7113711121 is 1211173117.

It can be written as a sum of positive squares in only one way, i.e., 3898254096 + 3215457025 = 62436^2 + 56705^2 .

It is not a de Polignac number, because 7113711121 - 2¹ = 7113711119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7113711127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29395380 + ... + 29395621.

Almost surely, 2^7113711121 is an apocalyptic number.

It is an amenable number.

7113711121 is a deficient number, since it is larger than the sum of its proper divisors (705492145).

7113711121 is a wasteful number, since it uses less digits than its factorization.

7113711121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58791023 (or 58791012 counting only the distinct ones).

The product of its digits is 294, while the sum is 25.

The square root of 7113711121 is about 84342.8190245026. The cubic root of 7113711121 is about 1923.2337649654.

Adding to 7113711121 its reverse (1211173117), we get a palindrome (8324884238).

The spelling of 7113711121 in words is "seven billion, one hundred thirteen million, seven hundred eleven thousand, one hundred twenty-one".