13131320007 has 16 divisors (see below), whose sum is σ = 18884140128. Its totient is φ = 8068421760.

The previous prime is 13131319997. The next prime is 13131320009. The reversal of 13131320007 is 70002313131.

It is not a de Polignac number, because 13131320007 - 2⁴ = 13131319991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131320009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232344 + ... + 283277.

It is an arithmetic number, because the mean of its divisors is an integer number (1180258758).

Almost surely, 2^13131320007 is an apocalyptic number.

13131320007 is a deficient number, since it is larger than the sum of its proper divisors (5752820121).

13131320007 is a wasteful number, since it uses less digits than its factorization.

13131320007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516290.

The product of its (nonzero) digits is 378, while the sum is 21.

Adding to 13131320007 its reverse (70002313131), we get a palindrome (83133633138).

The spelling of 13131320007 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty thousand, seven".