1323125340040 has 64 divisors (see below), whose sum is σ = 3471757488000. Its totient is φ = 453642969024.

The previous prime is 1323125339993. The next prime is 1323125340049. The reversal of 1323125340040 is 400435213231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1323125339990 and 1323125340008.

It is not an unprimeable number, because it can be changed into a prime (1323125340049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48205134 + ... + 48232573.

It is an arithmetic number, because the mean of its divisors is an integer number (54246210750).

Almost surely, 2^{1323125340040} is an apocalyptic number.

1323125340040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323125340040 is an abundant number, since it is smaller than the sum of its proper divisors (2148632147960).

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

1323125340040 is an equidigital number, since it uses as much as digits as its factorization.

1323125340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96437739 (or 96437721 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 1323125340040 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-five million, three hundred forty thousand, forty".