42145365313 has 4 divisors (see below), whose sum is σ = 42448569520. Its totient is φ = 41842161108.

The previous prime is 42145365307. The next prime is 42145365331. The reversal of 42145365313 is 31356354124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42145365313 - 2⁹ = 42145364801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42145365343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151601895 + ... + 151602172.

It is an arithmetic number, because the mean of its divisors is an integer number (10612142380).

Almost surely, 2^42145365313 is an apocalyptic number.

It is an amenable number.

42145365313 is a deficient number, since it is larger than the sum of its proper divisors (303204207).

42145365313 is a wasteful number, since it uses less digits than its factorization.

42145365313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303204206.

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

The spelling of 42145365313 in words is "forty-two billion, one hundred forty-five million, three hundred sixty-five thousand, three hundred thirteen".