1131310323213 has 16 divisors (see below), whose sum is σ = 1740638355456. Its totient is φ = 640186700400.

The previous prime is 1131310323203. The next prime is 1131310323239. The reversal of 1131310323213 is 3123230131311.

It is not a de Polignac number, because 1131310323213 - 2⁸ = 1131310322957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131310323203) 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, 261512013 + ... + 261516338.

It is an arithmetic number, because the mean of its divisors is an integer number (108789897216).

Almost surely, 2^{1131310323213} is an apocalyptic number.

It is an amenable number.

1131310323213 is a deficient number, since it is larger than the sum of its proper divisors (609328032243).

1131310323213 is a wasteful number, since it uses less digits than its factorization.

1131310323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523028464.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1131310323213 its reverse (3123230131311), we get a palindrome (4254540454524).

The spelling of 1131310323213 in words is "one trillion, one hundred thirty-one billion, three hundred ten million, three hundred twenty-three thousand, two hundred thirteen".