13123031001 has 4 divisors (see below), whose sum is σ = 17497374672. Its totient is φ = 8748687332.

The previous prime is 13123030997. The next prime is 13123031021. The reversal of 13123031001 is 10013032131.

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 13123031001 - 2² = 13123030997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13123031021) 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, 2187171831 + ... + 2187171836.

It is an arithmetic number, because the mean of its divisors is an integer number (4374343668).

Almost surely, 2^13123031001 is an apocalyptic number.

It is an amenable number.

13123031001 is a deficient number, since it is larger than the sum of its proper divisors (4374343671).

13123031001 is an equidigital number, since it uses as much as digits as its factorization.

13123031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374343670.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 13123031001 its reverse (10013032131), we get a palindrome (23136063132).

The spelling of 13123031001 in words is "thirteen billion, one hundred twenty-three million, thirty-one thousand, one".