1331231331103 has 16 divisors (see below), whose sum is σ = 1419990877440. Its totient is φ = 1243652662656.

The previous prime is 1331231331071. The next prime is 1331231331161. The reversal of 1331231331103 is 3011331321331.

It is a cyclic number.

It is not a de Polignac number, because 1331231331103 - 2⁵ = 1331231331071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331231331163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1875558 + ... + 2485996.

It is an arithmetic number, because the mean of its divisors is an integer number (88749429840).

Almost surely, 2^{1331231331103} is an apocalyptic number.

1331231331103 is a deficient number, since it is larger than the sum of its proper divisors (88759546337).

1331231331103 is a wasteful number, since it uses less digits than its factorization.

1331231331103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611406.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 1331231331103 its reverse (3011331321331), we get a palindrome (4342562652434).

The spelling of 1331231331103 in words is "one trillion, three hundred thirty-one billion, two hundred thirty-one million, three hundred thirty-one thousand, one hundred three".