1211130112301 has 4 divisors (see below), whose sum is σ = 1224738315900. Its totient is φ = 1197521908704.

The previous prime is 1211130112289. The next prime is 1211130112303. The reversal of 1211130112301 is 1032110311121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 438091753225 + 773038359076 = 661885^2 + 879226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211130112301 is a prime.

It is a super-2 number, since 2×1211130112301² (a number of 25 digits) contains 22 as substring.

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 1211130112301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211130112303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6804101666 + ... + 6804101843.

It is an arithmetic number, because the mean of its divisors is an integer number (306184578975).

Almost surely, 2^{1211130112301} is an apocalyptic number.

It is an amenable number.

1211130112301 is a deficient number, since it is larger than the sum of its proper divisors (13608203599).

1211130112301 is an equidigital number, since it uses as much as digits as its factorization.

1211130112301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13608203598.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1211130112301 its reverse (1032110311121), we get a palindrome (2243240423422).

The spelling of 1211130112301 in words is "one trillion, two hundred eleven billion, one hundred thirty million, one hundred twelve thousand, three hundred one".