1111203131311 has 8 divisors (see below), whose sum is σ = 1367634623264. Its totient is φ = 879193686240.

The previous prime is 1111203131303. The next prime is 1111203131317. The reversal of 1111203131311 is 1131313021111.

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 1111203131311 - 2³ = 1111203131303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111203131317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6105511620 + ... + 6105511801.

It is an arithmetic number, because the mean of its divisors is an integer number (170954327908).

Almost surely, 2^{1111203131311} is an apocalyptic number.

1111203131311 is a deficient number, since it is larger than the sum of its proper divisors (256431491953).

1111203131311 is a wasteful number, since it uses less digits than its factorization.

1111203131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211023441.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1111203131311 its reverse (1131313021111), we get a palindrome (2242516152422).

The spelling of 1111203131311 in words is "one trillion, one hundred eleven billion, two hundred three million, one hundred thirty-one thousand, three hundred eleven".