323130440403 has 8 divisors (see below), whose sum is σ = 478711763600. Its totient is φ = 215420293584.

The previous prime is 323130440401. The next prime is 323130440411. The reversal of 323130440403 is 304044031323.

It is not a de Polignac number, because 323130440403 - 2¹ = 323130440401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11967794089 = 323130440403 / (3 + 2 + 3 + 1 + 3 + 0 + 4 + 4 + 0 + 4 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323130440401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5983897018 + ... + 5983897071.

It is an arithmetic number, because the mean of its divisors is an integer number (59838970450).

Almost surely, 2^323130440403 is an apocalyptic number.

323130440403 is a deficient number, since it is larger than the sum of its proper divisors (155581323197).

323130440403 is a wasteful number, since it uses less digits than its factorization.

323130440403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11967794098 (or 11967794092 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 323130440403 its reverse (304044031323), we get a palindrome (627174471726).

The spelling of 323130440403 in words is "three hundred twenty-three billion, one hundred thirty million, four hundred forty thousand, four hundred three".