11220010031 has 4 divisors (see below), whose sum is σ = 11278144992. Its totient is φ = 11161875072.

The previous prime is 11220010027. The next prime is 11220010163. The reversal of 11220010031 is 13001002211.

11220010031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11220010031 - 2² = 11220010027 is a prime.

It is a super-2 number, since 2×11220010031² (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 = 11220009994 and 11220010021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220010001) 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 3 ways as a sum of consecutive naturals, for example, 29067191 + ... + 29067576.

It is an arithmetic number, because the mean of its divisors is an integer number (2819536248).

Almost surely, 2^11220010031 is an apocalyptic number.

11220010031 is a deficient number, since it is larger than the sum of its proper divisors (58134961).

11220010031 is an equidigital number, since it uses as much as digits as its factorization.

11220010031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58134960.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11220010031 its reverse (13001002211), we get a palindrome (24221012242).

The spelling of 11220010031 in words is "eleven billion, two hundred twenty million, ten thousand, thirty-one".