131220424006 has 32 divisors (see below), whose sum is σ = 229859182080. Its totient is φ = 55021948800.

The previous prime is 131220424001. The next prime is 131220424079. The reversal of 131220424006 is 600424022131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131220424001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373651 + ... + 634078.

It is an arithmetic number, because the mean of its divisors is an integer number (7183099440).

Almost surely, 2^131220424006 is an apocalyptic number.

131220424006 is a deficient number, since it is larger than the sum of its proper divisors (98638758074).

131220424006 is a wasteful number, since it uses less digits than its factorization.

131220424006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007940.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 131220424006 its reverse (600424022131), we get a palindrome (731644446137).

The spelling of 131220424006 in words is "one hundred thirty-one billion, two hundred twenty million, four hundred twenty-four thousand, six".