2135316321 has 12 divisors (see below), whose sum is σ = 3085464720. Its totient is φ = 1423027800.

The previous prime is 2135316299. The next prime is 2135316329. The reversal of 2135316321 is 1236135312.

2135316321 is a `hidden beast` number, since 21 + 3 + 5 + 3 + 1 + 632 + 1 = 666.

It is not a de Polignac number, because 2135316321 - 2⁶ = 2135316257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2135316329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15951 + ... + 67268.

It is an arithmetic number, because the mean of its divisors is an integer number (257122060).

Almost surely, 2^2135316321 is an apocalyptic number.

It is an amenable number.

2135316321 is a deficient number, since it is larger than the sum of its proper divisors (950148399).

2135316321 is a wasteful number, since it uses less digits than its factorization.

2135316321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86076 (or 86073 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 2135316321 is about 46209.4830202633. The cubic root of 2135316321 is about 1287.7179212740.

The spelling of 2135316321 in words is "two billion, one hundred thirty-five million, three hundred sixteen thousand, three hundred twenty-one".