13123123132001 has 4 divisors (see below), whose sum is σ = 13123167129600. Its totient is φ = 13123079134404.

The previous prime is 13123123131967. The next prime is 13123123132003. The reversal of 13123123132001 is 10023132132131.

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 a de Polignac number, because none of the positive numbers 2^k-13123123132001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123123132003) 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, 21548321 + ... + 22148958.

It is an arithmetic number, because the mean of its divisors is an integer number (3280791782400).

Almost surely, 2^{13123123132001} is an apocalyptic number.

It is an amenable number.

13123123132001 is a deficient number, since it is larger than the sum of its proper divisors (43997599).

13123123132001 is an equidigital number, since it uses as much as digits as its factorization.

13123123132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43997598.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13123123132001 its reverse (10023132132131), we get a palindrome (23146255264132).

It can be divided in two parts, 131 and 23123132001, that added together give a palindrome (23123132132).

The spelling of 13123123132001 in words is "thirteen trillion, one hundred twenty-three billion, one hundred twenty-three million, one hundred thirty-two thousand, one".