123523001352501 has 4 divisors (see below), whose sum is σ = 164697335136672. Its totient is φ = 82348667568332.

The previous prime is 123523001352469. The next prime is 123523001352511. The reversal of 123523001352501 is 105253100325321.

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 123523001352501 - 2⁵ = 123523001352469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123523001352511) 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, 20587166892081 + ... + 20587166892086.

It is an arithmetic number, because the mean of its divisors is an integer number (41174333784168).

Almost surely, 2^{123523001352501} is an apocalyptic number.

It is an amenable number.

123523001352501 is a deficient number, since it is larger than the sum of its proper divisors (41174333784171).

123523001352501 is an equidigital number, since it uses as much as digits as its factorization.

123523001352501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41174333784170.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 123523001352501 its reverse (105253100325321), we get a palindrome (228776101677822).

The spelling of 123523001352501 in words is "one hundred twenty-three trillion, five hundred twenty-three billion, one million, three hundred fifty-two thousand, five hundred one".