20030331323 has 4 divisors (see below), whose sum is σ = 20329291560. Its totient is φ = 19731371088.

The previous prime is 20030331313. The next prime is 20030331329. The reversal of 20030331323 is 32313303002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20030331323 - 2¹⁴ = 20030314939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20030331295 and 20030331304.

It is not an unprimeable number, because it can be changed into a prime (20030331329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149480018 + ... + 149480151.

It is an arithmetic number, because the mean of its divisors is an integer number (5082322890).

Almost surely, 2^20030331323 is an apocalyptic number.

20030331323 is a deficient number, since it is larger than the sum of its proper divisors (298960237).

20030331323 is an equidigital number, since it uses as much as digits as its factorization.

20030331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298960236.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20030331323 its reverse (32313303002), we get a palindrome (52343634325).

The spelling of 20030331323 in words is "twenty billion, thirty million, three hundred thirty-one thousand, three hundred twenty-three".