11200020231 has 16 divisors (see below), whose sum is σ = 15739113600. Its totient is φ = 7064792928.

The previous prime is 11200020217. The next prime is 11200020239. The reversal of 11200020231 is 13202000211.

It is not a de Polignac number, because 11200020231 - 2²⁹ = 10663149319 is a prime.

It is a super-2 number, since 2×11200020231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200020239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77841 + ... + 168698.

It is an arithmetic number, because the mean of its divisors is an integer number (983694600).

Almost surely, 2^11200020231 is an apocalyptic number.

11200020231 is a deficient number, since it is larger than the sum of its proper divisors (4539093369).

11200020231 is a wasteful number, since it uses less digits than its factorization.

11200020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247358.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11200020231 its reverse (13202000211), we get a palindrome (24402020442).

It can be divided in two parts, 112000 and 20231, that added together give a palindrome (132231).

The spelling of 11200020231 in words is "eleven billion, two hundred million, twenty thousand, two hundred thirty-one".