1323111311010 has 128 divisors (see below), whose sum is σ = 3555898444800. Its totient is φ = 350080254720.

The previous prime is 1323111310931. The next prime is 1323111311051. The reversal of 1323111311010 is 101131113231.

1323111311010 is a `hidden beast` number, since 1 + 32 + 311 + 1 + 311 + 0 + 10 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17837800 + ... + 17911820.

It is an arithmetic number, because the mean of its divisors is an integer number (27780456600).

Almost surely, 2^{1323111311010} is an apocalyptic number.

1323111311010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323111311010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777949222400).

1323111311010 is an abundant number, since it is smaller than the sum of its proper divisors (2232787133790).

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

1323111311010 is a wasteful number, since it uses less digits than its factorization.

1323111311010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74553 (or 74547 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1323111311010 its reverse (101131113231), we get a palindrome (1424242424241).

The spelling of 1323111311010 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, three hundred eleven thousand, ten".