31321000111 has 8 divisors (see below), whose sum is σ = 31486870800. Its totient is φ = 31155456000.

The previous prime is 31321000103. The next prime is 31321000121. The reversal of 31321000111 is 11100012313.

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 31321000111 - 2³ = 31321000103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31321000091 and 31321000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321000121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111885 + ... + 274153.

It is an arithmetic number, because the mean of its divisors is an integer number (3935858850).

Almost surely, 2^31321000111 is an apocalyptic number.

31321000111 is a deficient number, since it is larger than the sum of its proper divisors (165870689).

31321000111 is a wasteful number, since it uses less digits than its factorization.

31321000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163289.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 31321000111 its reverse (11100012313), we get a palindrome (42421012424).

The spelling of 31321000111 in words is "thirty-one billion, three hundred twenty-one million, one hundred eleven", and thus it is an aban number.