33425213231 has 8 divisors (see below), whose sum is σ = 35194481280. Its totient is φ = 31656949848.

The previous prime is 33425213207. The next prime is 33425213249. The reversal of 33425213231 is 13231252433.

It is a happy number.

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 33425213231 - 2⁶ = 33425213167 is a prime.

It is a super-2 number, since 2×33425213231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33425213194 and 33425213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33425213281) 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, 182381 + ... + 316406.

It is an arithmetic number, because the mean of its divisors is an integer number (4399310160).

Almost surely, 2^33425213231 is an apocalyptic number.

33425213231 is a deficient number, since it is larger than the sum of its proper divisors (1769268049).

33425213231 is a wasteful number, since it uses less digits than its factorization.

33425213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502333.

The product of its digits is 12960, while the sum is 29.

Adding to 33425213231 its reverse (13231252433), we get a palindrome (46656465664).

The spelling of 33425213231 in words is "thirty-three billion, four hundred twenty-five million, two hundred thirteen thousand, two hundred thirty-one".