33131213203 has 16 divisors (see below), whose sum is σ = 37693716480. Its totient is φ = 28847174400.

The previous prime is 33131213179. The next prime is 33131213231. The reversal of 33131213203 is 30231213133.

It is a de Polignac number, because none of the positive numbers 2^k-33131213203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33131213263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467743 + ... + 533896.

It is an arithmetic number, because the mean of its divisors is an integer number (2355857280).

Almost surely, 2^33131213203 is an apocalyptic number.

33131213203 is a deficient number, since it is larger than the sum of its proper divisors (4562503277).

33131213203 is a wasteful number, since it uses less digits than its factorization.

33131213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001778.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33131213203 its reverse (30231213133), we get a palindrome (63362426336).

The spelling of 33131213203 in words is "thirty-three billion, one hundred thirty-one million, two hundred thirteen thousand, two hundred three".