1321194814849 has 16 divisors (see below), whose sum is σ = 1626315651072. Its totient is φ = 1045193272128.

The previous prime is 1321194814831. The next prime is 1321194814861. The reversal of 1321194814849 is 9484184911231.

It is a cyclic number.

It is not a de Polignac number, because 1321194814849 - 2¹¹ = 1321194812801 is a prime.

It is a super-3 number, since 3×1321194814849³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1321194814849.

It is not an unprimeable number, because it can be changed into a prime (1321194812849) 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, 375634 + ... + 1668379.

It is an arithmetic number, because the mean of its divisors is an integer number (101644728192).

Almost surely, 2^{1321194814849} is an apocalyptic number.

It is an amenable number.

1321194814849 is a deficient number, since it is larger than the sum of its proper divisors (305120836223).

1321194814849 is a wasteful number, since it uses less digits than its factorization.

1321194814849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051136.

The product of its digits is 1990656, while the sum is 55.

The spelling of 1321194814849 in words is "one trillion, three hundred twenty-one billion, one hundred ninety-four million, eight hundred fourteen thousand, eight hundred forty-nine".