12021432433 has 8 divisors (see below), whose sum is σ = 12410917376. Its totient is φ = 11632053600.

The previous prime is 12021432431. The next prime is 12021432457. The reversal of 12021432433 is 33423412021.

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 12021432433 - 2¹ = 12021432431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021432398 and 12021432407.

It is not an unprimeable number, because it can be changed into a prime (12021432431) 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, 249460 + ... + 293722.

It is an arithmetic number, because the mean of its divisors is an integer number (1551364672).

Almost surely, 2^12021432433 is an apocalyptic number.

It is an amenable number.

12021432433 is a deficient number, since it is larger than the sum of its proper divisors (389484943).

12021432433 is an equidigital number, since it uses as much as digits as its factorization.

12021432433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53055.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12021432433 its reverse (33423412021), we get a palindrome (45444844454).

The spelling of 12021432433 in words is "twelve billion, twenty-one million, four hundred thirty-two thousand, four hundred thirty-three".