1213415517108 has 48 divisors (see below), whose sum is σ = 2954495214720. Its totient is φ = 386874031104.

The previous prime is 1213415517029. The next prime is 1213415517109. The reversal of 1213415517108 is 8017155143121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213415517109) 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, 14024316 + ... + 14110572.

It is an arithmetic number, because the mean of its divisors is an integer number (61551983640).

Almost surely, 2^{1213415517108} is an apocalyptic number.

It is an amenable number.

1213415517108 is an abundant number, since it is smaller than the sum of its proper divisors (1741079697612).

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

1213415517108 is a wasteful number, since it uses less digits than its factorization.

1213415517108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137256 (or 137254 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 39.

The spelling of 1213415517108 in words is "one trillion, two hundred thirteen billion, four hundred fifteen million, five hundred seventeen thousand, one hundred eight".