7133232121 has 4 divisors (see below), whose sum is σ = 7443372672. Its totient is φ = 6823091572.

The previous prime is 7133232107. The next prime is 7133232131. The reversal of 7133232121 is 1212323317.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7133232121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7133232131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155070241 + ... + 155070286.

It is an arithmetic number, because the mean of its divisors is an integer number (1860843168).

Almost surely, 2^7133232121 is an apocalyptic number.

It is an amenable number.

7133232121 is a deficient number, since it is larger than the sum of its proper divisors (310140551).

7133232121 is a wasteful number, since it uses less digits than its factorization.

7133232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310140550.

The product of its digits is 1512, while the sum is 25.

The square root of 7133232121 is about 84458.4638801820. The cubic root of 7133232121 is about 1924.9913640811.

Adding to 7133232121 its reverse (1212323317), we get a palindrome (8345555438).

The spelling of 7133232121 in words is "seven billion, one hundred thirty-three million, two hundred thirty-two thousand, one hundred twenty-one".