11211431441 has 8 divisors (see below), whose sum is σ = 13487436480. Its totient is φ = 9104019408.

The previous prime is 11211431419. The next prime is 11211431453. The reversal of 11211431441 is 14413411211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211431441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211431411) 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, 42148106 + ... + 42148371.

It is an arithmetic number, because the mean of its divisors is an integer number (1685929560).

Almost surely, 2^11211431441 is an apocalyptic number.

It is an amenable number.

11211431441 is a deficient number, since it is larger than the sum of its proper divisors (2276005039).

11211431441 is an equidigital number, since it uses as much as digits as its factorization.

11211431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84296503.

The product of its digits is 384, while the sum is 23.

Adding to 11211431441 its reverse (14413411211), we get a palindrome (25624842652).

The spelling of 11211431441 in words is "eleven billion, two hundred eleven million, four hundred thirty-one thousand, four hundred forty-one".