11200400231 has 4 divisors (see below), whose sum is σ = 11789895000. Its totient is φ = 10610905464.

The previous prime is 11200400221. The next prime is 11200400291. The reversal of 11200400231 is 13200400211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13200400211 = 2543 ⋅5190877.

It is a cyclic number.

It is not a de Polignac number, because 11200400231 - 2¹⁰ = 11200399207 is a prime.

It is a super-2 number, since 2×11200400231² (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 (11200400201) 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, 294747356 + ... + 294747393.

It is an arithmetic number, because the mean of its divisors is an integer number (2947473750).

Almost surely, 2^11200400231 is an apocalyptic number.

11200400231 is a deficient number, since it is larger than the sum of its proper divisors (589494769).

11200400231 is an equidigital number, since it uses as much as digits as its factorization.

11200400231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589494768.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11200400231 its reverse (13200400211), we get a palindrome (24400800442).

The spelling of 11200400231 in words is "eleven billion, two hundred million, four hundred thousand, two hundred thirty-one".