2232131131121 has 4 divisors (see below), whose sum is σ = 2232139654644. Its totient is φ = 2232122607600.

The previous prime is 2232131131067. The next prime is 2232131131157. The reversal of 2232131131121 is 1211311312322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 716435280625 + 1515695850496 = 846425^2 + 1231136^2 .

It is a cyclic number.

It is not a de Polignac number, because 2232131131121 - 2⁶ = 2232131131057 is a prime.

It is a super-3 number, since 3×2232131131121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2232131137121) 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, 3856070 + ... + 4396991.

It is an arithmetic number, because the mean of its divisors is an integer number (558034913661).

Almost surely, 2^{2232131131121} is an apocalyptic number.

It is an amenable number.

2232131131121 is a deficient number, since it is larger than the sum of its proper divisors (8523523).

2232131131121 is an equidigital number, since it uses as much as digits as its factorization.

2232131131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523522.

The product of its digits is 432, while the sum is 23.

Adding to 2232131131121 its reverse (1211311312322), we get a palindrome (3443442443443).

The spelling of 2232131131121 in words is "two trillion, two hundred thirty-two billion, one hundred thirty-one million, one hundred thirty-one thousand, one hundred twenty-one".