1213051439999 has 8 divisors (see below), whose sum is σ = 1386366095520. Its totient is φ = 1039742182656.

The previous prime is 1213051439993. The next prime is 1213051440059. The reversal of 1213051439999 is 9999341503121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213051439999 - 2¹⁶ = 1213051374463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213051439993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855974 + ... + 1777299.

It is an arithmetic number, because the mean of its divisors is an integer number (173295761940).

Almost surely, 2^{1213051439999} is an apocalyptic number.

1213051439999 is a deficient number, since it is larger than the sum of its proper divisors (173314655521).

1213051439999 is an equidigital number, since it uses as much as digits as its factorization.

1213051439999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699089.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The spelling of 1213051439999 in words is "one trillion, two hundred thirteen billion, fifty-one million, four hundred thirty-nine thousand, nine hundred ninety-nine".