131223142011 has 32 divisors (see below), whose sum is σ = 199024494592. Its totient is φ = 76330356480.

The previous prime is 131223141997. The next prime is 131223142027. The reversal of 131223142011 is 110241322131.

It is not a de Polignac number, because 131223142011 - 2⁶ = 131223141947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131223142091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1210090 + ... + 1314063.

It is an arithmetic number, because the mean of its divisors is an integer number (6219515456).

Almost surely, 2^131223142011 is an apocalyptic number.

131223142011 is a deficient number, since it is larger than the sum of its proper divisors (67801352581).

131223142011 is a wasteful number, since it uses less digits than its factorization.

131223142011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524243.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 131223142011 its reverse (110241322131), we get a palindrome (241464464142).

The spelling of 131223142011 in words is "one hundred thirty-one billion, two hundred twenty-three million, one hundred forty-two thousand, eleven".