20123030401 has 4 divisors (see below), whose sum is σ = 20551180032. Its totient is φ = 19694880772.

The previous prime is 20123030387. The next prime is 20123030413. The reversal of 20123030401 is 10403032102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20123030401 - 2¹³ = 20123022209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123030491) 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 3 ways as a sum of consecutive naturals, for example, 214074745 + ... + 214074838.

It is an arithmetic number, because the mean of its divisors is an integer number (5137795008).

Almost surely, 2^20123030401 is an apocalyptic number.

It is an amenable number.

20123030401 is a deficient number, since it is larger than the sum of its proper divisors (428149631).

20123030401 is an equidigital number, since it uses as much as digits as its factorization.

20123030401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428149630.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20123030401 its reverse (10403032102), we get a palindrome (30526062503).

The spelling of 20123030401 in words is "twenty billion, one hundred twenty-three million, thirty thousand, four hundred one".