13121223333 has 16 divisors (see below), whose sum is σ = 18885121920. Its totient is φ = 8078633024.

The previous prime is 13121223331. The next prime is 13121223343. The reversal of 13121223333 is 33332212131.

It is a cyclic number.

It is not a de Polignac number, because 13121223333 - 2¹ = 13121223331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121223331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3276666 + ... + 3280667.

It is an arithmetic number, because the mean of its divisors is an integer number (1180320120).

Almost surely, 2^13121223333 is an apocalyptic number.

It is an amenable number.

13121223333 is a deficient number, since it is larger than the sum of its proper divisors (5763898587).

13121223333 is a wasteful number, since it uses less digits than its factorization.

13121223333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557388.

The product of its digits is 1944, while the sum is 24.

Adding to 13121223333 its reverse (33332212131), we get a palindrome (46453435464).

The spelling of 13121223333 in words is "thirteen billion, one hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty-three".