23320403431403 has 16 divisors (see below), whose sum is σ = 26007952185600. Its totient is φ = 20772585104544.

The previous prime is 23320403431393. The next prime is 23320403431433. The reversal of 23320403431403 is 30413430402332.

It is not a de Polignac number, because 23320403431403 - 2¹⁶ = 23320403365867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23320403431403.

It is not an unprimeable number, because it can be changed into a prime (23320403431433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251267303 + ... + 251360096.

It is an arithmetic number, because the mean of its divisors is an integer number (1625497011600).

Almost surely, 2^{23320403431403} is an apocalyptic number.

23320403431403 is a deficient number, since it is larger than the sum of its proper divisors (2687548754197).

23320403431403 is a wasteful number, since it uses less digits than its factorization.

23320403431403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502627538.

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 23320403431403 its reverse (30413430402332), we get a palindrome (53733833833735).

The spelling of 23320403431403 in words is "twenty-three trillion, three hundred twenty billion, four hundred three million, four hundred thirty-one thousand, four hundred three".