131221112203 has 8 divisors (see below), whose sum is σ = 131506581600. Its totient is φ = 130935709440.

The previous prime is 131221112161. The next prime is 131221112237. The reversal of 131221112203 is 302211122131.

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-131221112203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131221142203) 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, 7953723 + ... + 7970203.

It is an arithmetic number, because the mean of its divisors is an integer number (16438322700).

Almost surely, 2^131221112203 is an apocalyptic number.

131221112203 is a deficient number, since it is larger than the sum of its proper divisors (285469397).

131221112203 is a wasteful number, since it uses less digits than its factorization.

131221112203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33317.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131221112203 its reverse (302211122131), we get a palindrome (433432234334).

The spelling of 131221112203 in words is "one hundred thirty-one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred three".