9131820011 has 8 divisors (see below), whose sum is σ = 9684320544. Its totient is φ = 8581023360.

The previous prime is 9131819999. The next prime is 9131820017. The reversal of 9131820011 is 1100281319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9131820011 - 2¹⁸ = 9131557867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9131820017) 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, 414920 + ... + 436373.

It is an arithmetic number, because the mean of its divisors is an integer number (1210540068).

Almost surely, 2^9131820011 is an apocalyptic number.

9131820011 is a deficient number, since it is larger than the sum of its proper divisors (552500533).

9131820011 is a wasteful number, since it uses less digits than its factorization.

9131820011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851941.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 9131820011 is about 95560.5567742256. The cubic root of 9131820011 is about 2090.1900738285.

The spelling of 9131820011 in words is "nine billion, one hundred thirty-one million, eight hundred twenty thousand, eleven".