13223031007 has 4 divisors (see below), whose sum is σ = 13530543400. Its totient is φ = 12915518616.

The previous prime is 13223030987. The next prime is 13223031013. The reversal of 13223031007 is 70013032231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70013032231 = 103 ⋅679738177.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13223031007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223031607) 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, 153756132 + ... + 153756217.

It is an arithmetic number, because the mean of its divisors is an integer number (3382635850).

Almost surely, 2^13223031007 is an apocalyptic number.

13223031007 is a deficient number, since it is larger than the sum of its proper divisors (307512393).

13223031007 is an equidigital number, since it uses as much as digits as its factorization.

13223031007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307512392.

The product of its (nonzero) digits is 756, while the sum is 22.

Adding to 13223031007 its reverse (70013032231), we get a palindrome (83236063238).

The spelling of 13223031007 in words is "thirteen billion, two hundred twenty-three million, thirty-one thousand, seven".