9920331131 has 8 divisors (see below), whose sum is σ = 10064370000. Its totient is φ = 9776512512.

The previous prime is 9920331097. The next prime is 9920331139. The reversal of 9920331131 is 1311330299.

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 9920331131 - 2¹⁰ = 9920330107 is a prime.

It is a super-2 number, since 2×9920331131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9920331139) 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, 36776 + ... + 145578.

It is an arithmetic number, because the mean of its divisors is an integer number (1258046250).

Almost surely, 2^9920331131 is an apocalyptic number.

9920331131 is a deficient number, since it is larger than the sum of its proper divisors (144038869).

9920331131 is a wasteful number, since it uses less digits than its factorization.

9920331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110125.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 9920331131 is about 99600.8590876605. The cubic root of 9920331131 is about 2148.6980493940.

The spelling of 9920331131 in words is "nine billion, nine hundred twenty million, three hundred thirty-one thousand, one hundred thirty-one".