1131302030321 has 4 divisors (see below), whose sum is σ = 1131326832612. Its totient is φ = 1131277228032.

The previous prime is 1131302030237. The next prime is 1131302030347. The reversal of 1131302030321 is 1230302031311.

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 743154340096 + 388147690225 = 862064^2 + 623015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131302030321 - 2¹⁴ = 1131302013937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131302030293 and 1131302030302.

It is not an unprimeable number, because it can be changed into a prime (1131302030371) 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, 12332600 + ... + 12423993.

It is an arithmetic number, because the mean of its divisors is an integer number (282831708153).

Almost surely, 2^{1131302030321} is an apocalyptic number.

It is an amenable number.

1131302030321 is a deficient number, since it is larger than the sum of its proper divisors (24802291).

1131302030321 is an equidigital number, since it uses as much as digits as its factorization.

1131302030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24802290.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1131302030321 its reverse (1230302031311), we get a palindrome (2361604061632).

The spelling of 1131302030321 in words is "one trillion, one hundred thirty-one billion, three hundred two million, thirty thousand, three hundred twenty-one".