131201122442 has 64 divisors (see below), whose sum is σ = 221048593920. Its totient is φ = 58010904000.

The previous prime is 131201122433. The next prime is 131201122447. The reversal of 131201122442 is 244221102131.

It is not an unprimeable number, because it can be changed into a prime (131201122447) 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, 32385317 + ... + 32389367.

It is an arithmetic number, because the mean of its divisors is an integer number (3453884280).

Almost surely, 2^131201122442 is an apocalyptic number.

131201122442 is a deficient number, since it is larger than the sum of its proper divisors (89847471478).

131201122442 is a wasteful number, since it uses less digits than its factorization.

131201122442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 131201122442 its reverse (244221102131), we get a palindrome (375422224573).

The spelling of 131201122442 in words is "one hundred thirty-one billion, two hundred one million, one hundred twenty-two thousand, four hundred forty-two".