33031234121 has 4 divisors (see below), whose sum is σ = 33047760000. Its totient is φ = 33014708244.

The previous prime is 33031234091. The next prime is 33031234151. The reversal of 33031234121 is 12143213033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (33031234091) and next prime (33031234151).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33031234121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33031234151) 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, 8259941 + ... + 8263938.

It is an arithmetic number, because the mean of its divisors is an integer number (8261940000).

Almost surely, 2^33031234121 is an apocalyptic number.

It is an amenable number.

33031234121 is a deficient number, since it is larger than the sum of its proper divisors (16525879).

33031234121 is a wasteful number, since it uses less digits than its factorization.

33031234121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16525878.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 33031234121 its reverse (12143213033), we get a palindrome (45174447154).

The spelling of 33031234121 in words is "thirty-three billion, thirty-one million, two hundred thirty-four thousand, one hundred twenty-one".