12012332431 has 8 divisors (see below), whose sum is σ = 13110326784. Its totient is φ = 10915332120.

The previous prime is 12012332419. The next prime is 12012332473. The reversal of 12012332431 is 13423321021.

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

It is not a de Polignac number, because 12012332431 - 2¹³ = 12012324239 is a prime.

It is a super-2 number, since 2×12012332431² (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 (12012432431) 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, 223125 + ... + 271678.

It is an arithmetic number, because the mean of its divisors is an integer number (1638790848).

Almost surely, 2^12012332431 is an apocalyptic number.

12012332431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12012332431 is a deficient number, since it is larger than the sum of its proper divisors (1097994353).

12012332431 is a wasteful number, since it uses less digits than its factorization.

12012332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497021.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12012332431 its reverse (13423321021), we get a palindrome (25435653452).

It can be divided in two parts, 12012 and 332431, that added together give a palindrome (344443).

The spelling of 12012332431 in words is "twelve billion, twelve million, three hundred thirty-two thousand, four hundred thirty-one".