23145302401 has 16 divisors (see below), whose sum is σ = 25277401296. Its totient is φ = 21063684096.

The previous prime is 23145302357. The next prime is 23145302441. The reversal of 23145302401 is 10420354132.

It can be written as a sum of positive squares in 8 ways, for example, as 1646411776 + 21498890625 = 40576^2 + 146625^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23145302401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23145302441) 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, 4489041 + ... + 4494193.

It is an arithmetic number, because the mean of its divisors is an integer number (1579837581).

Almost surely, 2^23145302401 is an apocalyptic number.

It is an amenable number.

23145302401 is a deficient number, since it is larger than the sum of its proper divisors (2132098895).

23145302401 is a wasteful number, since it uses less digits than its factorization.

23145302401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9972.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23145302401 its reverse (10420354132), we get a palindrome (33565656533).

The spelling of 23145302401 in words is "twenty-three billion, one hundred forty-five million, three hundred two thousand, four hundred one".