11320220131 has 8 divisors (see below), whose sum is σ = 12356396784. Its totient is φ = 10285221120.

The previous prime is 11320220129. The next prime is 11320220167. The reversal of 11320220131 is 13102202311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11320220131 - 2¹ = 11320220129 is a prime.

It is a super-2 number, since 2×11320220131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11320220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274246 + ... + 312811.

It is an arithmetic number, because the mean of its divisors is an integer number (1544549598).

Almost surely, 2^11320220131 is an apocalyptic number.

11320220131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11320220131 is a deficient number, since it is larger than the sum of its proper divisors (1036176653).

11320220131 is a wasteful number, since it uses less digits than its factorization.

11320220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588821.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11320220131 its reverse (13102202311), we get a palindrome (24422422442).

The spelling of 11320220131 in words is "eleven billion, three hundred twenty million, two hundred twenty thousand, one hundred thirty-one".