12131230033 has 8 divisors (see below), whose sum is σ = 13514898600. Its totient is φ = 10811918208.

The previous prime is 12131230021. The next prime is 12131230037. The reversal of 12131230033 is 33003213121.

It can be written as a sum of positive squares in 4 ways, for example, as 2657711809 + 9473518224 = 51553^2 + 97332^2 .

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

It is not a de Polignac number, because 12131230033 - 2⁹ = 12131229521 is a prime.

It is a super-2 number, since 2×12131230033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131230037) 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, 16088788 + ... + 16089541.

It is an arithmetic number, because the mean of its divisors is an integer number (1689362325).

Almost surely, 2^12131230033 is an apocalyptic number.

12131230033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12131230033 is a deficient number, since it is larger than the sum of its proper divisors (1383668567).

12131230033 is a wasteful number, since it uses less digits than its factorization.

12131230033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32178371.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12131230033 its reverse (33003213121), we get a palindrome (45134443154).

The spelling of 12131230033 in words is "twelve billion, one hundred thirty-one million, two hundred thirty thousand, thirty-three".