1311120131203 has 16 divisors (see below), whose sum is σ = 1373871139200. Its totient is φ = 1249547120640.

The previous prime is 1311120131201. The next prime is 1311120131207. The reversal of 1311120131203 is 3021310211131.

It is not a de Polignac number, because 1311120131203 - 2¹ = 1311120131201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311120131201) 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, 8614323 + ... + 8765203.

It is an arithmetic number, because the mean of its divisors is an integer number (85866946200).

Almost surely, 2^{1311120131203} is an apocalyptic number.

1311120131203 is a deficient number, since it is larger than the sum of its proper divisors (62751007997).

1311120131203 is a wasteful number, since it uses less digits than its factorization.

1311120131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154782.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1311120131203 its reverse (3021310211131), we get a palindrome (4332430342334).

The spelling of 1311120131203 in words is "one trillion, three hundred eleven billion, one hundred twenty million, one hundred thirty-one thousand, two hundred three".