1323101340 has 216 divisors, whose sum is σ = 4477335408. Its totient is φ = 313620480.

The previous prime is 1323101333. The next prime is 1323101341. The reversal of 1323101340 is 431013231.

1323101340 is a `hidden beast` number, since 1 + 323 + 1 + 0 + 1 + 340 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323101341) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13640172 + ... + 13640268.

Almost surely, 2^1323101340 is an apocalyptic number.

1323101340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323101340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238667704).

1323101340 is an abundant number, since it is smaller than the sum of its proper divisors (3154234068).

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

1323101340 is a wasteful number, since it uses less digits than its factorization.

1323101340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1323101340 is about 36374.4599959917. The cubic root of 1323101340 is about 1097.8197420751.

Adding to 1323101340 its reverse (431013231), we get a palindrome (1754114571).

The spelling of 1323101340 in words is "one billion, three hundred twenty-three million, one hundred one thousand, three hundred forty".