131100204242 has 16 divisors (see below), whose sum is σ = 232492973760. Its totient is φ = 54248360208.

The previous prime is 131100204233. The next prime is 131100204247. The reversal of 131100204242 is 242402001131.

It is a super-2 number, since 2×131100204242² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131100204247) 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, 161453048 + ... + 161453859.

It is an arithmetic number, because the mean of its divisors is an integer number (14530810860).

Almost surely, 2^131100204242 is an apocalyptic number.

131100204242 is a deficient number, since it is larger than the sum of its proper divisors (101392769518).

131100204242 is a wasteful number, since it uses less digits than its factorization.

131100204242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322906945.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 131100204242 its reverse (242402001131), we get a palindrome (373502205373).

The spelling of 131100204242 in words is "one hundred thirty-one billion, one hundred million, two hundred four thousand, two hundred forty-two".