1323403140 has 48 divisors (see below), whose sum is σ = 3707121600. Its totient is φ = 352755840.

The previous prime is 1323403091. The next prime is 1323403153. The reversal of 1323403140 is 413043231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243250 + ... + 248630.

It is an arithmetic number, because the mean of its divisors is an integer number (77231700).

Almost surely, 2^1323403140 is an apocalyptic number.

1323403140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323403140 is an abundant number, since it is smaller than the sum of its proper divisors (2383718460).

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

1323403140 is a wasteful number, since it uses less digits than its factorization.

1323403140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9492 (or 9490 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1323403140 is about 36378.6082746440. The cubic root of 1323403140 is about 1097.9032067853.

Adding to 1323403140 its reverse (413043231), we get a palindrome (1736446371).

The spelling of 1323403140 in words is "one billion, three hundred twenty-three million, four hundred three thousand, one hundred forty".