33330131213 has 4 divisors (see below), whose sum is σ = 34405296768. Its totient is φ = 32254965660.

The previous prime is 33330131207. The next prime is 33330131239. The reversal of 33330131213 is 31213103333.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31213103333 = 16267 ⋅1918799.

It is a cyclic number.

It is not a de Polignac number, because 33330131213 - 2²⁰ = 33329082637 is a prime.

It is a super-2 number, since 2×33330131213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33330131413) 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, 537582731 + ... + 537582792.

It is an arithmetic number, because the mean of its divisors is an integer number (8601324192).

Almost surely, 2^33330131213 is an apocalyptic number.

It is an amenable number.

33330131213 is a deficient number, since it is larger than the sum of its proper divisors (1075165555).

33330131213 is a wasteful number, since it uses less digits than its factorization.

33330131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075165554.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 33330131213 its reverse (31213103333), we get a palindrome (64543234546).

The spelling of 33330131213 in words is "thirty-three billion, three hundred thirty million, one hundred thirty-one thousand, two hundred thirteen".