1211200144331 has 8 divisors (see below), whose sum is σ = 1259685093744. Its totient is φ = 1163638717920.

The previous prime is 1211200144313. The next prime is 1211200144379. The reversal of 1211200144331 is 1334410021121.

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 1211200144331 - 2⁶ = 1211200144267 is a prime.

It is a super-2 number, since 2×1211200144331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211200144297 and 1211200144306.

It is not an unprimeable number, because it can be changed into a prime (1211200144381) 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, 230878076 + ... + 230883321.

It is an arithmetic number, because the mean of its divisors is an integer number (157460636718).

Almost surely, 2^{1211200144331} is an apocalyptic number.

1211200144331 is a deficient number, since it is larger than the sum of its proper divisors (48484949413).

1211200144331 is an equidigital number, since it uses as much as digits as its factorization.

1211200144331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461761501.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1211200144331 its reverse (1334410021121), we get a palindrome (2545610165452).

It can be divided in two parts, 1211200 and 144331, that added together give a palindrome (1355531).

The spelling of 1211200144331 in words is "one trillion, two hundred eleven billion, two hundred million, one hundred forty-four thousand, three hundred thirty-one".