23143402401 has 16 divisors (see below), whose sum is σ = 36799448064. Its totient is φ = 12649809744.

The previous prime is 23143402397. The next prime is 23143402417. The reversal of 23143402401 is 10420434132.

It is not a de Polignac number, because 23143402401 - 2² = 23143402397 is a prime.

It is a super-2 number, since 2×23143402401² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23143402301) 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 15 ways as a sum of consecutive naturals, for example, 23957491 + ... + 23958456.

It is an arithmetic number, because the mean of its divisors is an integer number (2299965504).

Almost surely, 2^23143402401 is an apocalyptic number.

23143402401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23143402401 is a deficient number, since it is larger than the sum of its proper divisors (13656045663).

23143402401 is a wasteful number, since it uses less digits than its factorization.

23143402401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47915980.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23143402401 its reverse (10420434132), we get a palindrome (33563836533).

The spelling of 23143402401 in words is "twenty-three billion, one hundred forty-three million, four hundred two thousand, four hundred one".