1211103200131 has 8 divisors (see below), whose sum is σ = 1321312261824. Its totient is φ = 1100912266920.

The previous prime is 1211103200119. The next prime is 1211103200161. The reversal of 1211103200131 is 1310023011121.

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 not a de Polignac number, because 1211103200131 - 2²⁵ = 1211069645699 is a prime.

It is a super-2 number, since 2×1211103200131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211103200161) 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 7 ways as a sum of consecutive naturals, for example, 4392241 + ... + 4659826.

It is an arithmetic number, because the mean of its divisors is an integer number (165164032728).

Almost surely, 2^{1211103200131} is an apocalyptic number.

1211103200131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1211103200131 is a deficient number, since it is larger than the sum of its proper divisors (110209061693).

1211103200131 is a wasteful number, since it uses less digits than its factorization.

1211103200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9064241.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1211103200131 its reverse (1310023011121), we get a palindrome (2521126211252).

The spelling of 1211103200131 in words is "one trillion, two hundred eleven billion, one hundred three million, two hundred thousand, one hundred thirty-one".