11231200002031 has 4 divisors (see below), whose sum is σ = 11288211169752. Its totient is φ = 11174188834312.

The previous prime is 11231200002013. The next prime is 11231200002049. The reversal of 11231200002031 is 13020000213211.

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

It is an interprime number because it is at equal distance from previous prime (11231200002013) and next prime (11231200002049).

It is a cyclic number.

It is not a de Polignac number, because 11231200002031 - 2³⁵ = 11196840263663 is a prime.

It is a super-3 number, since 3×11231200002031³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11231200001996 and 11231200002014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231200002431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28505583565 + ... + 28505583958.

It is an arithmetic number, because the mean of its divisors is an integer number (2822052792438).

Almost surely, 2^{11231200002031} is an apocalyptic number.

11231200002031 is a deficient number, since it is larger than the sum of its proper divisors (57011167721).

11231200002031 is an equidigital number, since it uses as much as digits as its factorization.

11231200002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57011167720.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11231200002031 its reverse (13020000213211), we get a palindrome (24251200215242).

The spelling of 11231200002031 in words is "eleven trillion, two hundred thirty-one billion, two hundred million, two thousand, thirty-one".