1211302233141 has 128 divisors (see below), whose sum is σ = 2230520979456. Its totient is φ = 564275911680.

The previous prime is 1211302233137. The next prime is 1211302233151. The reversal of 1211302233141 is 1413322031121.

It is not a de Polignac number, because 1211302233141 - 2² = 1211302233137 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211302233151) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 75214096 + ... + 75230198.

It is an arithmetic number, because the mean of its divisors is an integer number (17425945152).

Almost surely, 2^{1211302233141} is an apocalyptic number.

1211302233141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1211302233141 is a deficient number, since it is larger than the sum of its proper divisors (1019218746315).

1211302233141 is a wasteful number, since it uses less digits than its factorization.

1211302233141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1211302233141 its reverse (1413322031121), we get a palindrome (2624624264262).

The spelling of 1211302233141 in words is "one trillion, two hundred eleven billion, three hundred two million, two hundred thirty-three thousand, one hundred forty-one".