420120043 has 8 divisors (see below), whose sum is σ = 480326112. Its totient is φ = 359961216.

The previous prime is 420120017. The next prime is 420120079. The reversal of 420120043 is 340021024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420120043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420119999 and 420120026.

It is not an unprimeable number, because it can be changed into a prime (420120143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9921 + ... + 30637.

It is an arithmetic number, because the mean of its divisors is an integer number (60040764).

Almost surely, 2^420120043 is an apocalyptic number.

420120043 is a deficient number, since it is larger than the sum of its proper divisors (60206069).

420120043 is a wasteful number, since it uses less digits than its factorization.

420120043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23621.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 420120043 is about 20496.8300719892. The cubic root of 420120043 is about 748.9585800769.

Adding to 420120043 its reverse (340021024), we get a palindrome (760141067).

The spelling of 420120043 in words is "four hundred twenty million, one hundred twenty thousand, forty-three".