1131203222441 has 4 divisors (see below), whose sum is σ = 1131230225412. Its totient is φ = 1131176219472.

The previous prime is 1131203222437. The next prime is 1131203222453. The reversal of 1131203222441 is 1442223021311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 682342081600 + 448861140841 = 826040^2 + 669971^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131203222441 - 2² = 1131203222437 is a prime.

It is a super-3 number, since 3×1131203222441³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131203222441.

It is not an unprimeable number, because it can be changed into a prime (1131203222411) 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, 13438550 + ... + 13522463.

It is an arithmetic number, because the mean of its divisors is an integer number (282807556353).

Almost surely, 2^{1131203222441} is an apocalyptic number.

It is an amenable number.

1131203222441 is a deficient number, since it is larger than the sum of its proper divisors (27002971).

1131203222441 is an equidigital number, since it uses as much as digits as its factorization.

1131203222441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27002970.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1131203222441 its reverse (1442223021311), we get a palindrome (2573426243752).

The spelling of 1131203222441 in words is "one trillion, one hundred thirty-one billion, two hundred three million, two hundred twenty-two thousand, four hundred forty-one".