1131210012321 has 16 divisors (see below), whose sum is σ = 1675961123520. Its totient is φ = 754097510880.

The previous prime is 1131210012301. The next prime is 1131210012323. The reversal of 1131210012321 is 1232100121311.

1131210012321 is a `hidden beast` number, since 1 + 131 + 210 + 0 + 1 + 2 + 321 = 666.

It is not a de Polignac number, because 1131210012321 - 2¹⁹ = 1131209488033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131210012294 and 1131210012303.

It is not an unprimeable number, because it can be changed into a prime (1131210012323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688755 + ... + 1654328.

It is an arithmetic number, because the mean of its divisors is an integer number (104747570220).

Almost surely, 2^{1131210012321} is an apocalyptic number.

It is an amenable number.

1131210012321 is a deficient number, since it is larger than the sum of its proper divisors (544751111199).

1131210012321 is a wasteful number, since it uses less digits than its factorization.

1131210012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360973 (or 2360967 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1131210012321 its reverse (1232100121311), we get a palindrome (2363310133632).

The spelling of 1131210012321 in words is "one trillion, one hundred thirty-one billion, two hundred ten million, twelve thousand, three hundred twenty-one".