1131110031321 has 32 divisors (see below), whose sum is σ = 1695275936640. Its totient is φ = 745298712000.

The previous prime is 1131110031301. The next prime is 1131110031329. The reversal of 1131110031321 is 1231300111311.

1131110031321 is a `hidden beast` number, since 1 + 1 + 311 + 1 + 0 + 0 + 31 + 321 = 666.

It is not a de Polignac number, because 1131110031321 - 2¹⁸ = 1131109769177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131110031294 and 1131110031303.

It is not an unprimeable number, because it can be changed into a prime (1131110031329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193911 + ... + 1920323.

It is an arithmetic number, because the mean of its divisors is an integer number (52977373020).

Almost surely, 2^{1131110031321} is an apocalyptic number.

It is an amenable number.

1131110031321 is a deficient number, since it is larger than the sum of its proper divisors (564165905319).

1131110031321 is a wasteful number, since it uses less digits than its factorization.

1131110031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727094 (or 727088 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1131110031321 its reverse (1231300111311), we get a palindrome (2362410142632).

The spelling of 1131110031321 in words is "one trillion, one hundred thirty-one billion, one hundred ten million, thirty-one thousand, three hundred twenty-one".