1213653991118 has 8 divisors (see below), whose sum is σ = 1820486977248. Its totient is φ = 606824998704.

The previous prime is 1213653991079. The next prime is 1213653991139. The reversal of 1213653991118 is 8111993563121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63671 + ... + 1559282.

It is an arithmetic number, because the mean of its divisors is an integer number (227560872156).

Almost surely, 2^{1213653991118} is an apocalyptic number.

1213653991118 is a deficient number, since it is larger than the sum of its proper divisors (606832986130).

1213653991118 is a wasteful number, since it uses less digits than its factorization.

1213653991118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996858.

The product of its digits is 349920, while the sum is 50.

The spelling of 1213653991118 in words is "one trillion, two hundred thirteen billion, six hundred fifty-three million, nine hundred ninety-one thousand, one hundred eighteen".