12011032231 has 8 divisors (see below), whose sum is σ = 13113450000. Its totient is φ = 10910365440.

The previous prime is 12011032223. The next prime is 12011032301. The reversal of 12011032231 is 13223011021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12011032231 - 2³ = 12011032223 is a prime.

It is a super-2 number, since 2×12011032231² (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 (12011030231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423376 + ... + 450853.

It is an arithmetic number, because the mean of its divisors is an integer number (1639181250).

Almost surely, 2^12011032231 is an apocalyptic number.

12011032231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011032231 is a deficient number, since it is larger than the sum of its proper divisors (1102417769).

12011032231 is a wasteful number, since it uses less digits than its factorization.

12011032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875489.

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

Adding to 12011032231 its reverse (13223011021), we get a palindrome (25234043252).

The spelling of 12011032231 in words is "twelve billion, eleven million, thirty-two thousand, two hundred thirty-one".