1131001133321 has 2 divisors, whose sum is σ = 1131001133322. Its totient is φ = 1131001133320.

The previous prime is 1131001133237. The next prime is 1131001133371. The reversal of 1131001133321 is 1233311001311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 735692175625 + 395308957696 = 857725^2 + 628736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131001133321 - 2¹⁰ = 1131001132297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131001133293 and 1131001133302.

It is not a weakly prime, because it can be changed into another prime (1131001133371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565500566660 + 565500566661.

It is an arithmetic number, because the mean of its divisors is an integer number (565500566661).

Almost surely, 2^{1131001133321} is an apocalyptic number.

It is an amenable number.

1131001133321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131001133321 is an equidigital number, since it uses as much as digits as its factorization.

1131001133321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1131001133321 its reverse (1233311001311), we get a palindrome (2364312134632).

It can be divided in two parts, 113100 and 1133321, that added together give a palindrome (1246421).

The spelling of 1131001133321 in words is "one trillion, one hundred thirty-one billion, one million, one hundred thirty-three thousand, three hundred twenty-one".