42320235451 has 16 divisors (see below), whose sum is σ = 47571664896. Its totient is φ = 37354987296.

The previous prime is 42320235449. The next prime is 42320235479. The reversal of 42320235451 is 15453202324.

It is a cyclic number.

It is not a de Polignac number, because 42320235451 - 2¹ = 42320235449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42320235401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1051566 + ... + 1091068.

It is an arithmetic number, because the mean of its divisors is an integer number (2973229056).

Almost surely, 2^42320235451 is an apocalyptic number.

42320235451 is a deficient number, since it is larger than the sum of its proper divisors (5251429445).

42320235451 is a wasteful number, since it uses less digits than its factorization.

42320235451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43122.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 42320235451 its reverse (15453202324), we get a palindrome (57773437775).

The spelling of 42320235451 in words is "forty-two billion, three hundred twenty million, two hundred thirty-five thousand, four hundred fifty-one".