11232221311031 has 4 divisors (see below), whose sum is σ = 12836824355472. Its totient is φ = 9627618266592.

The previous prime is 11232221311021. The next prime is 11232221311037. The reversal of 11232221311031 is 13011312223211.

It is a happy number.

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 11232221311031 - 2³⁰ = 11231147569207 is a prime.

It is a super-2 number, since 2×11232221311031² (a number of 27 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 = 11232221310988 and 11232221311006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232221311037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802301522210 + ... + 802301522223.

It is an arithmetic number, because the mean of its divisors is an integer number (3209206088868).

Almost surely, 2^{11232221311031} is an apocalyptic number.

11232221311031 is a deficient number, since it is larger than the sum of its proper divisors (1604603044441).

11232221311031 is an equidigital number, since it uses as much as digits as its factorization.

11232221311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604603044440.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11232221311031 its reverse (13011312223211), we get a palindrome (24243533534242).

The spelling of 11232221311031 in words is "eleven trillion, two hundred thirty-two billion, two hundred twenty-one million, three hundred eleven thousand, thirty-one".