1131032203121 has 4 divisors (see below), whose sum is σ = 1135725283044. Its totient is φ = 1126339123200.

The previous prime is 1131032203099. The next prime is 1131032203159. The reversal of 1131032203121 is 1213022301311.

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 905236170721 + 225796032400 = 951439^2 + 475180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131032203121 - 2²⁶ = 1130965094257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1131032203093 and 1131032203102.

It is not an unprimeable number, because it can be changed into a prime (1131032203181) 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, 2346539600 + ... + 2346540081.

It is an arithmetic number, because the mean of its divisors is an integer number (283931320761).

Almost surely, 2^{1131032203121} is an apocalyptic number.

It is an amenable number.

1131032203121 is a deficient number, since it is larger than the sum of its proper divisors (4693079923).

1131032203121 is an equidigital number, since it uses as much as digits as its factorization.

1131032203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693079922.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131032203121 its reverse (1213022301311), we get a palindrome (2344054504432).

The spelling of 1131032203121 in words is "one trillion, one hundred thirty-one billion, thirty-two million, two hundred three thousand, one hundred twenty-one".