321312130110 has 48 divisors (see below), whose sum is σ = 839157830784. Its totient is φ = 85298999616.

The previous prime is 321312130091. The next prime is 321312130121. The reversal of 321312130110 is 11031213123.

321312130110 is a `hidden beast` number, since 321 + 31 + 2 + 1 + 301 + 10 = 666.

It is a super-2 number, since 2×321312130110² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7984717 + ... + 8024856.

It is an arithmetic number, because the mean of its divisors is an integer number (17482454808).

Almost surely, 2^321312130110 is an apocalyptic number.

321312130110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

321312130110 is an abundant number, since it is smaller than the sum of its proper divisors (517845700674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321312130110 is a wasteful number, since it uses less digits than its factorization.

321312130110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16009809 (or 16009806 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 321312130110 its reverse (11031213123), we get a palindrome (332343343233).

The spelling of 321312130110 in words is "three hundred twenty-one billion, three hundred twelve million, one hundred thirty thousand, one hundred ten".