9923111131 has 8 divisors (see below), whose sum is σ = 9943976144. Its totient is φ = 9902265120.

The previous prime is 9923111119. The next prime is 9923111147. The reversal of 9923111131 is 1311113299.

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 9923111131 - 2⁹ = 9923110619 is a prime.

It is a super-2 number, since 2×9923111131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9923111093 and 9923111102.

It is not an unprimeable number, because it can be changed into a prime (9923112131) 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, 1512400 + ... + 1518946.

It is an arithmetic number, because the mean of its divisors is an integer number (1242997018).

Almost surely, 2^9923111131 is an apocalyptic number.

9923111131 is a deficient number, since it is larger than the sum of its proper divisors (20865013).

9923111131 is a wasteful number, since it uses less digits than its factorization.

9923111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9501.

The product of its digits is 1458, while the sum is 31.

The square root of 9923111131 is about 99614.8138130067. The cubic root of 9923111131 is about 2148.8987423818.

The spelling of 9923111131 in words is "nine billion, nine hundred twenty-three million, one hundred eleven thousand, one hundred thirty-one".