1323120311010 has 96 divisors (see below), whose sum is σ = 3711198507120. Its totient is φ = 325811625984.

The previous prime is 1323120310937. The next prime is 1323120311011. The reversal of 1323120311010 is 101130213231.

1323120311010 is a `hidden beast` number, since 1 + 32 + 312 + 0 + 311 + 0 + 10 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 595676783601 + 727443527409 = 771801^2 + 852903^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1323120311011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8077255 + ... + 8239434.

Almost surely, 2^{1323120311010} is an apocalyptic number.

1323120311010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323120311010 is an abundant number, since it is smaller than the sum of its proper divisors (2388078196110).

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

1323120311010 is a wasteful number, since it uses less digits than its factorization.

1323120311010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16316772 (or 16316769 counting only the distinct ones).

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

Adding to 1323120311010 its reverse (101130213231), we get a palindrome (1424250524241).

The spelling of 1323120311010 in words is "one trillion, three hundred twenty-three billion, one hundred twenty million, three hundred eleven thousand, ten".