9720235331 has 4 divisors (see below), whose sum is σ = 9982944432. Its totient is φ = 9457526232.

The previous prime is 9720235241. The next prime is 9720235379. The reversal of 9720235331 is 1335320279.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9720235331 - 2¹⁴ = 9720218947 is a prime.

It is a super-2 number, since 2×9720235331² (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 = 9720235291 and 9720235300.

It is not an unprimeable number, because it can be changed into a prime (9720205331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131354495 + ... + 131354568.

It is an arithmetic number, because the mean of its divisors is an integer number (2495736108).

Almost surely, 2^9720235331 is an apocalyptic number.

9720235331 is a deficient number, since it is larger than the sum of its proper divisors (262709101).

9720235331 is a wasteful number, since it uses less digits than its factorization.

9720235331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262709100.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 9720235331 is about 98591.2538260874. The cubic root of 9720235331 is about 2134.1532057497.

The spelling of 9720235331 in words is "nine billion, seven hundred twenty million, two hundred thirty-five thousand, three hundred thirty-one".