1131203223213 has 32 divisors (see below), whose sum is σ = 1800832815360. Its totient is φ = 617932761600.

The previous prime is 1131203223211. The next prime is 1131203223239. The reversal of 1131203223213 is 3123223021311.

It is not a de Polignac number, because 1131203223213 - 2¹ = 1131203223211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131203223211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9133920 + ... + 9256937.

It is an arithmetic number, because the mean of its divisors is an integer number (56276025480).

Almost surely, 2^{1131203223213} is an apocalyptic number.

It is an amenable number.

1131203223213 is a deficient number, since it is larger than the sum of its proper divisors (669629592147).

1131203223213 is a wasteful number, since it uses less digits than its factorization.

1131203223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18390997.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1131203223213 its reverse (3123223021311), we get a palindrome (4254426244524).

It can be divided in two parts, 113120 and 3223213, that added together give a palindrome (3336333).

The spelling of 1131203223213 in words is "one trillion, one hundred thirty-one billion, two hundred three million, two hundred twenty-three thousand, two hundred thirteen".