420142042319 has 4 divisors (see below), whose sum is σ = 423164647080. Its totient is φ = 417119437560.

The previous prime is 420142042303. The next prime is 420142042351. The reversal of 420142042319 is 913240241024.

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

It is a cyclic number.

It is not a de Polignac number, because 420142042319 - 2⁴ = 420142042303 is a prime.

It is a super-2 number, since 2×420142042319² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420142042219) 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, 1511302172 + ... + 1511302449.

It is an arithmetic number, because the mean of its divisors is an integer number (105791161770).

Almost surely, 2^420142042319 is an apocalyptic number.

420142042319 is a deficient number, since it is larger than the sum of its proper divisors (3022604761).

420142042319 is a wasteful number, since it uses less digits than its factorization.

420142042319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022604760.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 420142042319 in words is "four hundred twenty billion, one hundred forty-two million, forty-two thousand, three hundred nineteen".