11220143031 has 32 divisors (see below), whose sum is σ = 16910594240. Its totient is φ = 7350652800.

The previous prime is 11220143029. The next prime is 11220143059. The reversal of 11220143031 is 13034102211.

11220143031 is a `hidden beast` number, since 1 + 1 + 2 + 201 + 430 + 31 = 666.

It is not a de Polignac number, because 11220143031 - 2¹ = 11220143029 is a prime.

It is a super-2 number, since 2×11220143031² (a number of 21 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 = 11220142995 and 11220143013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220143071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2272041 + ... + 2276973.

It is an arithmetic number, because the mean of its divisors is an integer number (528456070).

Almost surely, 2^11220143031 is an apocalyptic number.

11220143031 is a deficient number, since it is larger than the sum of its proper divisors (5690451209).

11220143031 is a wasteful number, since it uses less digits than its factorization.

11220143031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384 (or 6378 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11220143031 its reverse (13034102211), we get a palindrome (24254245242).

The spelling of 11220143031 in words is "eleven billion, two hundred twenty million, one hundred forty-three thousand, thirty-one".