11031332131221 has 16 divisors (see below), whose sum is σ = 15604481433600. Its totient is φ = 6912297625968.

The previous prime is 11031332131219. The next prime is 11031332131249. The reversal of 11031332131221 is 12213123313011.

It is not a de Polignac number, because 11031332131221 - 2¹ = 11031332131219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11031332131191 and 11031332131200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031332131621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761930331 + ... + 761944808.

It is an arithmetic number, because the mean of its divisors is an integer number (975280089600).

Almost surely, 2^{11031332131221} is an apocalyptic number.

It is an amenable number.

11031332131221 is a deficient number, since it is larger than the sum of its proper divisors (4573149302379).

11031332131221 is a wasteful number, since it uses less digits than its factorization.

11031332131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523875288.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11031332131221 its reverse (12213123313011), we get a palindrome (23244455444232).

The spelling of 11031332131221 in words is "eleven trillion, thirty-one billion, three hundred thirty-two million, one hundred thirty-one thousand, two hundred twenty-one".