1321322101110 has 96 divisors (see below), whose sum is σ = 3747957288192. Its totient is φ = 320302789440.

The previous prime is 1321322101087. The next prime is 1321322101193. The reversal of 1321322101110 is 111012231231.

1321322101110 is a `hidden beast` number, since 1 + 321 + 322 + 1 + 0 + 11 + 10 = 666.

It is a super-3 number, since 3×1321322101110³ (a number of 37 digits) contains 333 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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31269817 + ... + 31312043.

It is an arithmetic number, because the mean of its divisors is an integer number (39041221752).

Almost surely, 2^{1321322101110} is an apocalyptic number.

1321322101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321322101110 is an abundant number, since it is smaller than the sum of its proper divisors (2426635187082).

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

1321322101110 is a wasteful number, since it uses less digits than its factorization.

1321322101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73858 (or 73855 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1321322101110 its reverse (111012231231), we get a palindrome (1432334332341).

The spelling of 1321322101110 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-two million, one hundred one thousand, one hundred ten".