11031200231 has 4 divisors (see below), whose sum is σ = 11078544672. Its totient is φ = 10983855792.

The previous prime is 11031200153. The next prime is 11031200371. The reversal of 11031200231 is 13200213011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13200213011 = 29 ⋅455179759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031200231 is a prime.

It is a super-2 number, since 2×11031200231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031200731) 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, 23671871 + ... + 23672336.

It is an arithmetic number, because the mean of its divisors is an integer number (2769636168).

Almost surely, 2^11031200231 is an apocalyptic number.

11031200231 is a deficient number, since it is larger than the sum of its proper divisors (47344441).

11031200231 is an equidigital number, since it uses as much as digits as its factorization.

11031200231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47344440.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11031200231 its reverse (13200213011), we get a palindrome (24231413242).

The spelling of 11031200231 in words is "eleven billion, thirty-one million, two hundred thousand, two hundred thirty-one".