11331131121323 has 16 divisors (see below), whose sum is σ = 12216123081120. Its totient is φ = 10448052136704.

The previous prime is 11331131121227. The next prime is 11331131121329. The reversal of 11331131121323 is 32312113113311.

It is not a de Polignac number, because 11331131121323 - 2¹⁶ = 11331131055787 is a prime.

It is a super-2 number, since 2×11331131121323² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331131121292 and 11331131121301.

It is not an unprimeable number, because it can be changed into a prime (11331131121329) 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, 82044815 + ... + 82182807.

It is an arithmetic number, because the mean of its divisors is an integer number (763507692570).

Almost surely, 2^{11331131121323} is an apocalyptic number.

11331131121323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11331131121323 is a deficient number, since it is larger than the sum of its proper divisors (884991959797).

11331131121323 is a wasteful number, since it uses less digits than its factorization.

11331131121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144878.

The product of its digits is 972, while the sum is 26.

Adding to 11331131121323 its reverse (32312113113311), we get a palindrome (43643244234634).

The spelling of 11331131121323 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty-three".