20230321403 has 6 divisors (see below), whose sum is σ = 20903964732. Its totient is φ = 19577729460.

The previous prime is 20230321399. The next prime is 20230321451. The reversal of 20230321403 is 30412303202.

It is not a de Polignac number, because 20230321403 - 2² = 20230321399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20230321103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10524701 + ... + 10526622.

It is an arithmetic number, because the mean of its divisors is an integer number (3483994122).

Almost surely, 2^20230321403 is an apocalyptic number.

20230321403 is a deficient number, since it is larger than the sum of its proper divisors (673643329).

20230321403 is an equidigital number, since it uses as much as digits as its factorization.

20230321403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21051385 (or 21051354 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20230321403 its reverse (30412303202), we get a palindrome (50642624605).

The spelling of 20230321403 in words is "twenty billion, two hundred thirty million, three hundred twenty-one thousand, four hundred three".