11032021231 has 16 divisors (see below), whose sum is σ = 14352219648. Its totient is φ = 8222623200.

The previous prime is 11032021229. The next prime is 11032021237. The reversal of 11032021231 is 13212023011.

It is not a de Polignac number, because 11032021231 - 2¹ = 11032021229 is a prime.

It is a super-2 number, since 2×11032021231² (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 (11032021237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3112860 + ... + 3116401.

It is an arithmetic number, because the mean of its divisors is an integer number (897013728).

Almost surely, 2^11032021231 is an apocalyptic number.

11032021231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11032021231 is a deficient number, since it is larger than the sum of its proper divisors (3320198417).

11032021231 is a wasteful number, since it uses less digits than its factorization.

11032021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229302.

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

Adding to 11032021231 its reverse (13212023011), we get a palindrome (24244044242).

The spelling of 11032021231 in words is "eleven billion, thirty-two million, twenty-one thousand, two hundred thirty-one".