11211244331 has 8 divisors (see below), whose sum is σ = 12816578304. Its totient is φ = 9606842280.

The previous prime is 11211244327. The next prime is 11211244349. The reversal of 11211244331 is 13344211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11211244331 - 2² = 11211244327 is a prime.

It is a super-2 number, since 2×11211244331² (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 = 11211244297 and 11211244306.

It is not an unprimeable number, because it can be changed into a prime (11211244381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207005 + ... + 255486.

It is an arithmetic number, because the mean of its divisors is an integer number (1602072288).

Almost surely, 2^11211244331 is an apocalyptic number.

11211244331 is a deficient number, since it is larger than the sum of its proper divisors (1605333973).

11211244331 is an equidigital number, since it uses as much as digits as its factorization.

11211244331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465961.

The product of its digits is 576, while the sum is 23.

Adding to 11211244331 its reverse (13344211211), we get a palindrome (24555455542).

The spelling of 11211244331 in words is "eleven billion, two hundred eleven million, two hundred forty-four thousand, three hundred thirty-one".