131223001101211 has 8 divisors (see below), whose sum is σ = 138129652162880. Its totient is φ = 124316367771528.

The previous prime is 131223001101191. The next prime is 131223001101263. The reversal of 131223001101211 is 112101100322131.

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 131223001101211 - 2²¹ = 131222999004059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131223001111211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12395260 + ... + 20398246.

It is an arithmetic number, because the mean of its divisors is an integer number (17266206520360).

Almost surely, 2^{131223001101211} is an apocalyptic number.

131223001101211 is a deficient number, since it is larger than the sum of its proper divisors (6906651061669).

131223001101211 is an equidigital number, since it uses as much as digits as its factorization.

131223001101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865993.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 131223001101211 its reverse (112101100322131), we get a palindrome (243324101423342).

The spelling of 131223001101211 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, one million, one hundred one thousand, two hundred eleven".