13213023154 has 4 divisors (see below), whose sum is σ = 19819534734. Its totient is φ = 6606511576.

The previous prime is 13213023127. The next prime is 13213023163. The reversal of 13213023154 is 45132031231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11114008929 + 2099014225 = 105423^2 + 45815^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3303255787 + ... + 3303255790.

Almost surely, 2^13213023154 is an apocalyptic number.

13213023154 is a deficient number, since it is larger than the sum of its proper divisors (6606511580).

13213023154 is an equidigital number, since it uses as much as digits as its factorization.

13213023154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606511579.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13213023154 its reverse (45132031231), we get a palindrome (58345054385).

The spelling of 13213023154 in words is "thirteen billion, two hundred thirteen million, twenty-three thousand, one hundred fifty-four".