312132010131442 has 4 divisors (see below), whose sum is σ = 468198015197166. Its totient is φ = 156066005065720.

The previous prime is 312132010131433. The next prime is 312132010131467. The reversal of 312132010131442 is 244131010231213.

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

It can be written as a sum of positive squares in only one way, i.e., 223389223256521 + 88742786874921 = 14946211^2 + 9420339^2 .

It is a super-2 number, since 2×312132010131442² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312132010131442.

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 as a sum of consecutive naturals, namely, 78033002532859 + ... + 78033002532862.

Almost surely, 2^{312132010131442} is an apocalyptic number.

312132010131442 is a deficient number, since it is larger than the sum of its proper divisors (156066005065724).

312132010131442 is a wasteful number, since it uses less digits than its factorization.

312132010131442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156066005065723.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 312132010131442 its reverse (244131010231213), we get a palindrome (556263020362655).

The spelling of 312132010131442 in words is "three hundred twelve trillion, one hundred thirty-two billion, ten million, one hundred thirty-one thousand, four hundred forty-two".