1321112041 has 8 divisors (see below), whose sum is σ = 1411205544. Its totient is φ = 1232394240.

The previous prime is 1321112033. The next prime is 1321112069. The reversal of 1321112041 is 1402111231.

It can be written as a sum of positive squares in 4 ways, for example, as 129481641 + 1191630400 = 11379^2 + 34520^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1321112041 - 2³ = 1321112033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321112021) 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, 341940 + ... + 345781.

It is an arithmetic number, because the mean of its divisors is an integer number (176400693).

Almost surely, 2^1321112041 is an apocalyptic number.

It is an amenable number.

1321112041 is a deficient number, since it is larger than the sum of its proper divisors (90093503).

1321112041 is a wasteful number, since it uses less digits than its factorization.

1321112041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687851.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1321112041 is about 36347.1049878804. The cubic root of 1321112041 is about 1097.2692709795.

Adding to 1321112041 its reverse (1402111231), we get a palindrome (2723223272).

It can be divided in two parts, 13211 and 12041, that added together give a palindrome (25252).

The spelling of 1321112041 in words is "one billion, three hundred twenty-one million, one hundred twelve thousand, forty-one".