23403378902401 has 4 divisors (see below), whose sum is σ = 23427936488772. Its totient is φ = 23378821316032.

The previous prime is 23403378902377. The next prime is 23403378902419. The reversal of 23403378902401 is 10420987330432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4190270410225 + 19213108492176 = 2047015^2 + 4383276^2 .

It is a cyclic number.

It is not a de Polignac number, because 23403378902401 - 2¹⁷ = 23403378771329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23403372902401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12278791756 + ... + 12278793661.

It is an arithmetic number, because the mean of its divisors is an integer number (5856984122193).

Almost surely, 2^{23403378902401} is an apocalyptic number.

It is an amenable number.

23403378902401 is a deficient number, since it is larger than the sum of its proper divisors (24557586371).

23403378902401 is an equidigital number, since it uses as much as digits as its factorization.

23403378902401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24557586370.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 23403378902401 in words is "twenty-three trillion, four hundred three billion, three hundred seventy-eight million, nine hundred two thousand, four hundred one".