13011323215 has 32 divisors (see below), whose sum is σ = 18709056000. Its totient is φ = 8574952320.

The previous prime is 13011323209. The next prime is 13011323257. The reversal of 13011323215 is 51232311031.

It is not a de Polignac number, because 13011323215 - 2³ = 13011323207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246640 + ... + 294709.

It is an arithmetic number, because the mean of its divisors is an integer number (584658000).

Almost surely, 2^13011323215 is an apocalyptic number.

13011323215 is a deficient number, since it is larger than the sum of its proper divisors (5697732785).

13011323215 is a wasteful number, since it uses less digits than its factorization.

13011323215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541407.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 13011323215 its reverse (51232311031), we get a palindrome (64243634246).

The spelling of 13011323215 in words is "thirteen billion, eleven million, three hundred twenty-three thousand, two hundred fifteen".