42351335122312 has 8 divisors (see below), whose sum is σ = 79408753354350. Its totient is φ = 21175667561152.

The previous prime is 42351335122253. The next prime is 42351335122319. The reversal of 42351335122312 is 21322153315324.

It can be written as a sum of positive squares in only one way, i.e., 26481995276356 + 15869339845956 = 5146066^2 + 3983634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42351335122319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2646958445137 + ... + 2646958445152.

Almost surely, 2^{42351335122312} is an apocalyptic number.

It is an amenable number.

42351335122312 is a deficient number, since it is larger than the sum of its proper divisors (37057418232038).

42351335122312 is a wasteful number, since it uses less digits than its factorization.

42351335122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293916890295 (or 5293916890291 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

Adding to 42351335122312 its reverse (21322153315324), we get a palindrome (63673488437636).

The spelling of 42351335122312 in words is "forty-two trillion, three hundred fifty-one billion, three hundred thirty-five million, one hundred twenty-two thousand, three hundred twelve".