1211320030323 has 8 divisors (see below), whose sum is σ = 1739331325648. Its totient is φ = 745427710944.

The previous prime is 1211320030313. The next prime is 1211320030337. The reversal of 1211320030323 is 3230300231121.

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

It is not a de Polignac number, because 1211320030323 - 2⁴ = 1211320030307 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 1211320030323.

It is not an unprimeable number, because it can be changed into a prime (1211320030313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15529743940 + ... + 15529744017.

It is an arithmetic number, because the mean of its divisors is an integer number (217416415706).

Almost surely, 2^{1211320030323} is an apocalyptic number.

1211320030323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1211320030323 is a deficient number, since it is larger than the sum of its proper divisors (528011295325).

1211320030323 is a wasteful number, since it uses less digits than its factorization.

1211320030323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31059487973.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1211320030323 its reverse (3230300231121), we get a palindrome (4441620261444).

The spelling of 1211320030323 in words is "one trillion, two hundred eleven billion, three hundred twenty million, thirty thousand, three hundred twenty-three".