33012031223 has 4 divisors (see below), whose sum is σ = 34076935488. Its totient is φ = 31947126960.

The previous prime is 33012031193. The next prime is 33012031231. The reversal of 33012031223 is 32213021033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33012031223 - 2⁶ = 33012031159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33012031195 and 33012031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33012031523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532452086 + ... + 532452147.

It is an arithmetic number, because the mean of its divisors is an integer number (8519233872).

Almost surely, 2^33012031223 is an apocalyptic number.

33012031223 is a deficient number, since it is larger than the sum of its proper divisors (1064904265).

33012031223 is a wasteful number, since it uses less digits than its factorization.

33012031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064904264.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33012031223 its reverse (32213021033), we get a palindrome (65225052256).

The spelling of 33012031223 in words is "thirty-three billion, twelve million, thirty-one thousand, two hundred twenty-three".