131223040211422 has 4 divisors (see below), whose sum is σ = 196834560317136. Its totient is φ = 65611520105710.

The previous prime is 131223040211387. The next prime is 131223040211423. The reversal of 131223040211422 is 224112040322131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131223040211423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32805760052854 + ... + 32805760052857.

It is an arithmetic number, because the mean of its divisors is an integer number (49208640079284).

Almost surely, 2^{131223040211422} is an apocalyptic number.

131223040211422 is a deficient number, since it is larger than the sum of its proper divisors (65611520105714).

131223040211422 is an equidigital number, since it uses as much as digits as its factorization.

131223040211422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65611520105713.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131223040211422 its reverse (224112040322131), we get a palindrome (355335080533553).

The spelling of 131223040211422 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, forty million, two hundred eleven thousand, four hundred twenty-two".