42030202120 has 16 divisors (see below), whose sum is σ = 94567954860. Its totient is φ = 16812080832.

The previous prime is 42030202117. The next prime is 42030202147. The reversal of 42030202120 is 2120203024.

It can be written as a sum of positive squares in 2 ways, for example, as 42024180004 + 6022116 = 204998^2 + 2454^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42030202094 and 42030202103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525377487 + ... + 525377566.

Almost surely, 2^42030202120 is an apocalyptic number.

42030202120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42030202120 is an abundant number, since it is smaller than the sum of its proper divisors (52537752740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42030202120 is a wasteful number, since it uses less digits than its factorization.

42030202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050755064 (or 1050755060 counting only the distinct ones).

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

Adding to 42030202120 its reverse (2120203024), we get a palindrome (44150405144).

The spelling of 42030202120 in words is "forty-two billion, thirty million, two hundred two thousand, one hundred twenty".