31323230111 has 8 divisors (see below), whose sum is σ = 31364515104. Its totient is φ = 31281971040.

The previous prime is 31323230077. The next prime is 31323230189. The reversal of 31323230111 is 11103232313.

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 31323230111 - 2³⁴ = 14143360927 is a prime.

It is a super-2 number, since 2×31323230111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323230011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3649421 + ... + 3657993.

It is an arithmetic number, because the mean of its divisors is an integer number (3920564388).

Almost surely, 2^31323230111 is an apocalyptic number.

31323230111 is a deficient number, since it is larger than the sum of its proper divisors (41284993).

31323230111 is a wasteful number, since it uses less digits than its factorization.

31323230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12961.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31323230111 its reverse (11103232313), we get a palindrome (42426462424).

It can be divided in two parts, 313232 and 30111, that added together give a palindrome (343343).

The spelling of 31323230111 in words is "thirty-one billion, three hundred twenty-three million, two hundred thirty thousand, one hundred eleven".