11203231302031 has 8 divisors (see below), whose sum is σ = 11371556646144. Its totient is φ = 11034938691480.

The previous prime is 11203231302007. The next prime is 11203231302083. The reversal of 11203231302031 is 13020313230211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11203231302031 is a prime.

It is a super-2 number, since 2×11203231302031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203231301993 and 11203231302011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203231302331) 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, 7493305 + ... + 8863186.

It is an arithmetic number, because the mean of its divisors is an integer number (1421444580768).

Almost surely, 2^{11203231302031} is an apocalyptic number.

11203231302031 is a deficient number, since it is larger than the sum of its proper divisors (168325344113).

11203231302031 is a wasteful number, since it uses less digits than its factorization.

11203231302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16366781.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 11203231302031 its reverse (13020313230211), we get a palindrome (24223544532242).

The spelling of 11203231302031 in words is "eleven trillion, two hundred three billion, two hundred thirty-one million, three hundred two thousand, thirty-one".