11231211441 has 4 divisors (see below), whose sum is σ = 14974948592. Its totient is φ = 7487474292.

The previous prime is 11231211427. The next prime is 11231211461. The reversal of 11231211441 is 14411213211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14411213211 = 3 ⋅4803737737.

It is not a de Polignac number, because 11231211441 - 2⁶ = 11231211377 is a prime.

It is a super-2 number, since 2×11231211441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231211461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871868571 + ... + 1871868576.

It is an arithmetic number, because the mean of its divisors is an integer number (3743737148).

Almost surely, 2^11231211441 is an apocalyptic number.

It is an amenable number.

11231211441 is a deficient number, since it is larger than the sum of its proper divisors (3743737151).

11231211441 is an equidigital number, since it uses as much as digits as its factorization.

11231211441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743737150.

The product of its digits is 192, while the sum is 21.

Adding to 11231211441 its reverse (14411213211), we get a palindrome (25642424652).

It can be divided in two parts, 112312 and 11441, that added together give a triangular number (123753 = T₄₉₇).

The spelling of 11231211441 in words is "eleven billion, two hundred thirty-one million, two hundred eleven thousand, four hundred forty-one".