11220241131 has 24 divisors (see below), whose sum is σ = 17703854064. Its totient is φ = 6791117760.

The previous prime is 11220241129. The next prime is 11220241141. The reversal of 11220241131 is 13114202211.

11220241131 is a `hidden beast` number, since 1 + 1 + 220 + 2 + 411 + 31 = 666.

It is not a de Polignac number, because 11220241131 - 2¹ = 11220241129 is a prime.

It is a super-2 number, since 2×11220241131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11220241121) 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 23 ways as a sum of consecutive naturals, for example, 85 + ... + 149801.

It is an arithmetic number, because the mean of its divisors is an integer number (737660586).

Almost surely, 2^11220241131 is an apocalyptic number.

11220241131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11220241131 is a deficient number, since it is larger than the sum of its proper divisors (6483612933).

11220241131 is a wasteful number, since it uses less digits than its factorization.

11220241131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150491 (or 150488 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11220241131 its reverse (13114202211), we get a palindrome (24334443342).

The spelling of 11220241131 in words is "eleven billion, two hundred twenty million, two hundred forty-one thousand, one hundred thirty-one".