131212001400442 has 8 divisors (see below), whose sum is σ = 197266334680800. Its totient is φ = 65456556506844.

The previous prime is 131212001400433. The next prime is 131212001400517. The reversal of 131212001400442 is 244004100212131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74722095592 + ... + 74722097347.

It is an arithmetic number, because the mean of its divisors is an integer number (24658291835100).

Almost surely, 2^{131212001400442} is an apocalyptic number.

131212001400442 is a deficient number, since it is larger than the sum of its proper divisors (66054333280358).

131212001400442 is a wasteful number, since it uses less digits than its factorization.

131212001400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149444193380.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 131212001400442 its reverse (244004100212131), we get a palindrome (375216101612573).

The spelling of 131212001400442 in words is "one hundred thirty-one trillion, two hundred twelve billion, one million, four hundred thousand, four hundred forty-two".