2135352321 has 16 divisors (see below), whose sum is σ = 3181777920. Its totient is φ = 1415336400.

The previous prime is 2135352311. The next prime is 2135352341. The reversal of 2135352321 is 1232535312.

It is a happy number.

2135352321 is a `hidden beast` number, since 2 + 135 + 3 + 523 + 2 + 1 = 666.

It is not a de Polignac number, because 2135352321 - 2⁶ = 2135352257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2135352301) 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, 223905 + ... + 233246.

It is an arithmetic number, because the mean of its divisors is an integer number (198861120).

Almost surely, 2^2135352321 is an apocalyptic number.

It is an amenable number.

2135352321 is a deficient number, since it is larger than the sum of its proper divisors (1046425599).

2135352321 is a wasteful number, since it uses less digits than its factorization.

2135352321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457333 (or 457327 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 2135352321 is about 46209.8725490560. The cubic root of 2135352321 is about 1287.7251579200.

Adding to 2135352321 its reverse (1232535312), we get a palindrome (3367887633).

The spelling of 2135352321 in words is "two billion, one hundred thirty-five million, three hundred fifty-two thousand, three hundred twenty-one".