11331131321203 has 4 divisors (see below), whose sum is σ = 11441142305008. Its totient is φ = 11221120337400.

The previous prime is 11331131321183. The next prime is 11331131321267. The reversal of 11331131321203 is 30212313113311.

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

It is a cyclic number.

It is not a de Polignac number, because 11331131321203 - 2¹⁷ = 11331131190131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331131321273) 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 3 ways as a sum of consecutive naturals, for example, 55005491748 + ... + 55005491953.

It is an arithmetic number, because the mean of its divisors is an integer number (2860285576252).

Almost surely, 2^{11331131321203} is an apocalyptic number.

11331131321203 is a deficient number, since it is larger than the sum of its proper divisors (110010983805).

11331131321203 is a wasteful number, since it uses less digits than its factorization.

11331131321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110010983804.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 11331131321203 its reverse (30212313113311), we get a palindrome (41543444434514).

The spelling of 11331131321203 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred twenty-one thousand, two hundred three".