1131212013113 has 16 divisors (see below), whose sum is σ = 1440269940480. Its totient is φ = 864161960256.

The previous prime is 1131212013109. The next prime is 1131212013119. The reversal of 1131212013113 is 3113102121311.

It is not a de Polignac number, because 1131212013113 - 2² = 1131212013109 is a prime.

It is a super-2 number, since 2×1131212013113² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131212013119) 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 15 ways as a sum of consecutive naturals, for example, 214323245 + ... + 214328522.

It is an arithmetic number, because the mean of its divisors is an integer number (90016871280).

Almost surely, 2^{1131212013113} is an apocalyptic number.

1131212013113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1131212013113 is a deficient number, since it is larger than the sum of its proper divisors (309057927367).

1131212013113 is a wasteful number, since it uses less digits than its factorization.

1131212013113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428651816.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1131212013113 its reverse (3113102121311), we get a palindrome (4244314134424).

The spelling of 1131212013113 in words is "one trillion, one hundred thirty-one billion, two hundred twelve million, thirteen thousand, one hundred thirteen".