20423100401 has 16 divisors (see below), whose sum is σ = 23687095680. Its totient is φ = 17424126720.

The previous prime is 20423100353. The next prime is 20423100409. The reversal of 20423100401 is 10400132402.

It is not a de Polignac number, because 20423100401 - 2¹⁸ = 20422838257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20423100401.

It is not an unprimeable number, because it can be changed into a prime (20423100409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748136 + ... + 774953.

It is an arithmetic number, because the mean of its divisors is an integer number (1480443480).

Almost surely, 2^20423100401 is an apocalyptic number.

It is an amenable number.

20423100401 is a deficient number, since it is larger than the sum of its proper divisors (3263995279).

20423100401 is a wasteful number, since it uses less digits than its factorization.

20423100401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523176.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20423100401 its reverse (10400132402), we get a palindrome (30823232803).

The spelling of 20423100401 in words is "twenty billion, four hundred twenty-three million, one hundred thousand, four hundred one".