23145232532501 has 4 divisors (see below), whose sum is σ = 23181228229152. Its totient is φ = 23109236835852.

The previous prime is 23145232532497. The next prime is 23145232532507. The reversal of 23145232532501 is 10523523254132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23145232532501 - 2² = 23145232532497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145232532507) 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, 17997847361 + ... + 17997848646.

It is an arithmetic number, because the mean of its divisors is an integer number (5795307057288).

Almost surely, 2^{23145232532501} is an apocalyptic number.

It is an amenable number.

23145232532501 is a deficient number, since it is larger than the sum of its proper divisors (35995696651).

23145232532501 is an equidigital number, since it uses as much as digits as its factorization.

23145232532501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35995696650.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 23145232532501 its reverse (10523523254132), we get a palindrome (33668755786633).

The spelling of 23145232532501 in words is "twenty-three trillion, one hundred forty-five billion, two hundred thirty-two million, five hundred thirty-two thousand, five hundred one".