31321303111 has 8 divisors (see below), whose sum is σ = 35802233504. Its totient is φ = 26841987360.

The previous prime is 31321303087. The next prime is 31321303129. The reversal of 31321303111 is 11130312313.

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 31321303111 - 2⁹ = 31321302599 is a prime.

It is a super-2 number, since 2×31321303111² (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 (31321303151) 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, 361800 + ... + 439933.

It is an arithmetic number, because the mean of its divisors is an integer number (4475279188).

Almost surely, 2^31321303111 is an apocalyptic number.

31321303111 is a deficient number, since it is larger than the sum of its proper divisors (4480930393).

31321303111 is an equidigital number, since it uses as much as digits as its factorization.

31321303111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807321.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31321303111 its reverse (11130312313), we get a palindrome (42451615424).

The spelling of 31321303111 in words is "thirty-one billion, three hundred twenty-one million, three hundred three thousand, one hundred eleven".