1321313212110 has 16 divisors (see below), whose sum is σ = 3171151709136. Its totient is φ = 352350189888.

The previous prime is 1321313212099. The next prime is 1321313212129. The reversal of 1321313212110 is 112123131231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22021886839 + ... + 22021886898.

It is an arithmetic number, because the mean of its divisors is an integer number (198196981821).

Almost surely, 2^{1321313212110} is an apocalyptic number.

1321313212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321313212110 is an abundant number, since it is smaller than the sum of its proper divisors (1849838497026).

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

1321313212110 is a wasteful number, since it uses less digits than its factorization.

1321313212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44043773747.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1321313212110 its reverse (112123131231), we get a palindrome (1433436343341).

The spelling of 1321313212110 in words is "one trillion, three hundred twenty-one billion, three hundred thirteen million, two hundred twelve thousand, one hundred ten".