1214404520311 has 4 divisors (see below), whose sum is σ = 1214443235632. Its totient is φ = 1214365804992.

The previous prime is 1214404520293. The next prime is 1214404520359. The reversal of 1214404520311 is 1130254044121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1214404520311 - 2¹³ = 1214404512119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214404520311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214404520411) 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 3 ways as a sum of consecutive naturals, for example, 19310571 + ... + 19373356.

It is an arithmetic number, because the mean of its divisors is an integer number (303610808908).

Almost surely, 2^{1214404520311} is an apocalyptic number.

1214404520311 is a deficient number, since it is larger than the sum of its proper divisors (38715321).

1214404520311 is an equidigital number, since it uses as much as digits as its factorization.

1214404520311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38715320.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1214404520311 its reverse (1130254044121), we get a palindrome (2344658564432).

The spelling of 1214404520311 in words is "one trillion, two hundred fourteen billion, four hundred four million, five hundred twenty thousand, three hundred eleven".