909131128213 has 8 divisors (see below), whose sum is σ = 1133462185920. Its totient is φ = 708413866080.

The previous prime is 909131128091. The next prime is 909131128219. The reversal of 909131128213 is 312821131909.

909131128213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 909131128213 - 2²¹ = 909129031061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (909131128219) 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, 5903448808 + ... + 5903448961.

It is an arithmetic number, because the mean of its divisors is an integer number (141682773240).

Almost surely, 2^909131128213 is an apocalyptic number.

It is an amenable number.

909131128213 is a deficient number, since it is larger than the sum of its proper divisors (224331057707).

909131128213 is a wasteful number, since it uses less digits than its factorization.

909131128213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11806897787.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 909131128213 in words is "nine hundred nine billion, one hundred thirty-one million, one hundred twenty-eight thousand, two hundred thirteen".