331211011210009 has 12 divisors (see below), whose sum is σ = 392555830771044. Its totient is φ = 278538640152864.

The previous prime is 331211011210007. The next prime is 331211011210043. The reversal of 331211011210009 is 900012110112133.

It can be written as a sum of positive squares in 2 ways, for example, as 116961045411609 + 214249965798400 = 10814853^2 + 14637280^2 .

It is not a de Polignac number, because 331211011210009 - 2¹ = 331211011210007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331211011210007) 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, 63768001102 + ... + 63768006295.

It is an arithmetic number, because the mean of its divisors is an integer number (32712985897587).

Almost surely, 2^{331211011210009} is an apocalyptic number.

It is an amenable number.

331211011210009 is a deficient number, since it is larger than the sum of its proper divisors (61344819561035).

331211011210009 is a wasteful number, since it uses less digits than its factorization.

331211011210009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127536007464 (or 127536007457 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 331211011210009 in words is "three hundred thirty-one trillion, two hundred eleven billion, eleven million, two hundred ten thousand, nine".