11220344402431 has 16 divisors (see below), whose sum is σ = 11671838231328. Its totient is φ = 10777584182400.

The previous prime is 11220344402413. The next prime is 11220344402453. The reversal of 11220344402431 is 13420444302211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11220344402431 - 2⁴¹ = 9021321146879 is a prime.

It is a super-2 number, since 2×11220344402431² (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 = 11220344402393 and 11220344402402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220344402411) 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 15 ways as a sum of consecutive naturals, for example, 12744105 + ... + 13596061.

It is an arithmetic number, because the mean of its divisors is an integer number (729489889458).

Almost surely, 2^{11220344402431} is an apocalyptic number.

11220344402431 is a deficient number, since it is larger than the sum of its proper divisors (451493828897).

11220344402431 is an equidigital number, since it uses as much as digits as its factorization.

11220344402431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857082.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 11220344402431 its reverse (13420444302211), we get a palindrome (24640788704642).

The spelling of 11220344402431 in words is "eleven trillion, two hundred twenty billion, three hundred forty-four million, four hundred two thousand, four hundred thirty-one".