1131203023321 has 8 divisors (see below), whose sum is σ = 1368850717440. Its totient is φ = 912567144768.

The previous prime is 1131203023319. The next prime is 1131203023339. The reversal of 1131203023321 is 1233203021311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131203023321 - 2¹ = 1131203023319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131203023292 and 1131203023301.

It is not an unprimeable number, because it can be changed into a prime (1131203023361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4752953761 + ... + 4752953998.

It is an arithmetic number, because the mean of its divisors is an integer number (171106339680).

Almost surely, 2^{1131203023321} is an apocalyptic number.

It is an amenable number.

1131203023321 is a deficient number, since it is larger than the sum of its proper divisors (237647694119).

1131203023321 is an equidigital number, since it uses as much as digits as its factorization.

1131203023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9505907783.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1131203023321 its reverse (1233203021311), we get a palindrome (2364406044632).

It can be divided in two parts, 113120 and 3023321, that added together give a square (3136441 = 1771²).

The spelling of 1131203023321 in words is "one trillion, one hundred thirty-one billion, two hundred three million, twenty-three thousand, three hundred twenty-one".