2131333321 has 8 divisors (see below), whose sum is σ = 2316734784. Its totient is φ = 1948996560.

The previous prime is 2131333319. The next prime is 2131333343. The reversal of 2131333321 is 1233331312.

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 2131333321 - 2¹ = 2131333319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131333292 and 2131333301.

It is not an unprimeable number, because it can be changed into a prime (2131333121) 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, 764725 + ... + 767506.

It is an arithmetic number, because the mean of its divisors is an integer number (289591848).

Almost surely, 2^2131333321 is an apocalyptic number.

It is an amenable number.

2131333321 is a deficient number, since it is larger than the sum of its proper divisors (185401463).

2131333321 is a wasteful number, since it uses less digits than its factorization.

2131333321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532351.

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

The square root of 2131333321 is about 46166.3656897530. The cubic root of 2131333321 is about 1286.9167639680.

Adding to 2131333321 its reverse (1233331312), we get a palindrome (3364664633).

The spelling of 2131333321 in words is "two billion, one hundred thirty-one million, three hundred thirty-three thousand, three hundred twenty-one".