13135316620 has 24 divisors (see below), whose sum is σ = 27828277344. Its totient is φ = 5207629056.

The previous prime is 13135316573. The next prime is 13135316633. The reversal of 13135316620 is 2661353131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2903784 + ... + 2908303.

It is an arithmetic number, because the mean of its divisors is an integer number (1159511556).

Almost surely, 2^13135316620 is an apocalyptic number.

13135316620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13135316620 is an abundant number, since it is smaller than the sum of its proper divisors (14692960724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13135316620 is a wasteful number, since it uses less digits than its factorization.

13135316620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5812209 (or 5812207 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 13135316620 its reverse (2661353131), we get a palindrome (15796669751).

The spelling of 13135316620 in words is "thirteen billion, one hundred thirty-five million, three hundred sixteen thousand, six hundred twenty".