1211340430099 has 8 divisors (see below), whose sum is σ = 1241001835920. Its totient is φ = 1181684572800.

The previous prime is 1211340429979. The next prime is 1211340430117. The reversal of 1211340430099 is 9900340431121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211340430099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211340436099) 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, 943434 + ... + 1820095.

It is an arithmetic number, because the mean of its divisors is an integer number (155125229490).

Almost surely, 2^{1211340430099} is an apocalyptic number.

1211340430099 is a deficient number, since it is larger than the sum of its proper divisors (29661405821).

1211340430099 is a wasteful number, since it uses less digits than its factorization.

1211340430099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774261.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 1211340430099 in words is "one trillion, two hundred eleven billion, three hundred forty million, four hundred thirty thousand, ninety-nine".