1213385699939 has 16 divisors (see below), whose sum is σ = 1410287500800. Its totient is φ = 1022375575104.

The previous prime is 1213385699927. The next prime is 1213385699947. The reversal of 1213385699939 is 9399965833121.

It is a cyclic number.

It is not a de Polignac number, because 1213385699939 - 2⁴ = 1213385699923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213385699639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14379479 + ... + 14463615.

It is an arithmetic number, because the mean of its divisors is an integer number (88142968800).

Almost surely, 2^{1213385699939} is an apocalyptic number.

1213385699939 is a deficient number, since it is larger than the sum of its proper divisors (196901800861).

1213385699939 is an equidigital number, since it uses as much as digits as its factorization.

1213385699939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119122.

The product of its digits is 85030560, while the sum is 68.

The spelling of 1213385699939 in words is "one trillion, two hundred thirteen billion, three hundred eighty-five million, six hundred ninety-nine thousand, nine hundred thirty-nine".