42354130321145 has 4 divisors (see below), whose sum is σ = 50824956385380. Its totient is φ = 33883304256912.

The previous prime is 42354130321109. The next prime is 42354130321159. The reversal of 42354130321145 is 54112303145324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11833455520441 + 30520674800704 = 3439979^2 + 5524552^2 .

It is a cyclic number.

It is not a de Polignac number, because 42354130321145 - 2¹⁶ = 42354130255609 is a prime.

It is a super-2 number, since 2×42354130321145² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42354130321099 and 42354130321108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235413032110 + ... + 4235413032119.

It is an arithmetic number, because the mean of its divisors is an integer number (12706239096345).

Almost surely, 2^{42354130321145} is an apocalyptic number.

It is an amenable number.

42354130321145 is a deficient number, since it is larger than the sum of its proper divisors (8470826064235).

42354130321145 is an equidigital number, since it uses as much as digits as its factorization.

42354130321145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470826064234.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 42354130321145 its reverse (54112303145324), we get a palindrome (96466433466469).

The spelling of 42354130321145 in words is "forty-two trillion, three hundred fifty-four billion, one hundred thirty million, three hundred twenty-one thousand, one hundred forty-five".