2131212333 has 8 divisors (see below), whose sum is σ = 2842168896. Its totient is φ = 1420532000.

The previous prime is 2131212329. The next prime is 2131212353. The reversal of 2131212333 is 3332121312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131212333 - 2² = 2131212329 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131212353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50328 + ... + 82433.

It is an arithmetic number, because the mean of its divisors is an integer number (355271112).

Almost surely, 2^2131212333 is an apocalyptic number.

It is an amenable number.

2131212333 is a deficient number, since it is larger than the sum of its proper divisors (710956563).

2131212333 is a wasteful number, since it uses less digits than its factorization.

2131212333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138115.

The product of its digits is 648, while the sum is 21.

The square root of 2131212333 is about 46165.0553232637. The cubic root of 2131212333 is about 1286.8924123207.

Adding to 2131212333 its reverse (3332121312), we get a palindrome (5463333645).

The spelling of 2131212333 in words is "two billion, one hundred thirty-one million, two hundred twelve thousand, three hundred thirty-three".